Astudent examines the diagram shown below of several metal spheres of equal mass resting on different shelves.

the student plans to make a bar graph comparing the potential energies of the spheres. which statement best compares two of the bars that should be used in the graph?

a. the bar representing sphere 3 should be twice as tall as the bar representing sphere 1.

b. the bar representing sphere 3 should be twice as tall as the bar representing sphere 2.

c. the bar representing sphere 1 should be twice as tall as the bar representing sphere 2.

d. the bar representing sphere 4 should be twice as tall as the bar representing sphere 2.

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =