4a^7*2a^3 multiply the coefficients

8a^10

Step-by-step explanation:

First know that if you multiply two exponents with same base you add the two base.

So, 2^7*2^3=2^10

Then calculate.

4a^7*2a^3

=4*2*(a^7*a^3)

=4*2*(a^10)

=8*(a^10)

=8*a^10

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere