Simplify the expression. -9(-7x-6)-(-6x-10)
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i think the answer might be 69x + 64.

my work:

-9 (-7x - 6)-(-6x-10)

63x + 54 - (-6x-10)

63x + 54 + 6x + 10

= 69x + 64.

but i'm not 100% confident with this answer. maybe that's just because i hate math.

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