Why has some tropical grassland in Africa become desert, like the Sahel?

Find the sum of the zeros in the following equation: (2x-1)(x+8)(2x-4)(x-1) enlarge the line by scale factor-2,with point (6,5)as the centre of enlargement.Mark the ends of your lines with crosses using the cross-drawing tool find the answer, 1/2 divided by 4 PLEASE HELPPPcan someone help with number 8 what does CPI stand for and what is it used to measure? Jessica has a coupon for 20% off the original price ofher purchase.When she gets to the checkout counter, the employeenotifies her that they are going to take an additional15% off the already reduced price.What is the final price of a pair of sneakers thatoriginally cost $140? Which are the best tools for researching the author and the historical and cultural context of a work of short fiction?OA. validated websites and books of literary criticismB. sample student essays on the WebOC. general search enginesD. online summaries A roller coaster car is at the top of a 72 m hill and weighs 966 N. What is the coasters potential energy? Will mark brainlyASAP Which of the following statements are true about the graph of f(x) = 6(x + 1)2 -9?Check all of the boxes that apply.a. The vertex is (1, -9).b. The graph opens upward.c. The graph is obtained by shifting the graph of f(x) = 6(x + 1)2 up 9 units.d. The graph is steeper than the graph of f(x) = x2.e. The graph is the same as the graph of f(x) = 6x2 + 12x - 3. Which of the following planets is always closer to the Sun than it is to Earth?JupiterMercurySaturnUranus During cell division, what definition correctly describes the process of cytokinesis?The cells membrane separates the cytoplasm, forming two cells.The cells membrane separates the cytoplasm, forming two cells.The cells membrane reforms the nucleus, forming two cells.The cells membrane reforms the nucleus, forming two cells.The cells nucleus reforms the cell membrane, forming two cells.The cells nucleus reforms the cell membrane, forming two cells.The cells nucleus separat Someone who is really good at chores and maintaining a home might be described as a ________ person ? Domestic or foreign which property of steel is useful for making the car body circle the correct answer ductile magneticsonorous strong xAn investment account started at $800 at thebeginning of the month. By the end of the month, theaccount had 125% of $800 in it. What was the finalaccount balance? what was the economic impact of the 15th amendment sheeeeeeeeeeesh math ixl Describe the Virginia Plan and the New Jersey plan. Identify which group preferred each plan and explain why Select all the correct answers.Which two of these processes remove airborne CO2 from Earths atmosphere?1.photosynthesis2.respiration3.carbon sequestration4.burning fossil fuels Logistics Solutions provides order fulfillment services for dot merchants. The company maintains warehouses that stock items carried by its dot clients. When a client receives an order from a customer, the order is forwarded to Logistics Solutions, which pulls the item from storage, packs it, and ships it to the customer. The company uses a predetermined variable overhead rate based on direct labor-hours. In the most recent month, 190,000 items were shipped to customers using 8,300 direct labor-hours. The company incurred a total of $29,050 in variable overhead costs. According to the companys standards, 0.03 direct labor-hours are required to fulfill an order for one item and the variable overhead rate is $3.55 per direct labor-hour. Required: 1. What is the standard labor-hours allowed (SH) to ship 190,000 items to customers? 2. What is the standard variable overhead cost allowed (SH SR) to ship 190,000 items to customers? 3. What is the variable overhead spending variance? 4. What is the variable overhead rate variance and the variable overhead efficiency variance?