Last year, a popular song was downloaded 8.71 X 10^7 times. Write the number of times the song was downloaded in standard form.

Actually it would be 87,100,000 in standard form.

Step-by-step explanation:

See below.

Step-by-step explanation:

a. That would be a cylinder.

b.The height of the cylinder will be n * thickness of one circle where  n is the number of circles.  The volume of the cylinder is π r^2 h where h is the height of the stack.

c.  That would be a cone

d. The height of the cone will be n * thickness of one circle where n is the number of similar circles.

Volume of the cone = 1/3 * π r^2  h    where h is the height of the stack of circles.