1. identify the properfy used to find the equivalent expression.
[4+(-2)] +1 = 4+[(-2) + 1]
(9-3)-6 = 5.(9-3)
(a x 3) x b = b xa x 3)
x+y+z) = (x + y) +2

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

answer:

at time x=0 we have 1000, at time x=1 we have 2000, at time x=2 we have 4000.  

so that's an initial value of 1000 and a ratio of 2,

y = 1000 (2^x)

hope this !

333.74 ! should be your answer for this question