What is the following sum?

4 (RootIndex 5 StartRoot x squared y EndRoot) + 3 (RootIndex 5 StartRoot x squared y EndRoot)
7 (RootIndex 10 StartRoot x squared y EndRoot)
7 (RootIndex 10 StartRoot x Superscript 4 Baseline y squared EndRoot)
7 (RootIndex 5 StartRoot x squared y EndRoot)
7 (RootIndex 5 StartRoot x Superscript 4 Baseline y squared EndRoot)

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

he has 140 chickens because he has 10 times more chickens than ducks and he has 14 ducks so 14*10=140