(GIVING BRAINLIEST TO WHOEVER HELPS FIRST!) A radioactive isotope is decaying (decreasing) at a rate of 18% every hour. Currently, there are 100 grams of the substance.

1. Let y = amount (in grams) and x = number of hours. Create an equation with this information.
2. Rounding to the nearest tenth, how much will be left 6 hours from now?

c

step-by-step explanation:

the answer is 15% decrease

answer: a) (0,0), (1,1), (2,8), and (3,27).

step-by-step explanation:

0^3=0

1^3=1

2^3=8

3^3=27

in effect, the exponential equation for this would me y=3^x. each x-coordinate cubed is giving the y coordinate, so a is your answer : )

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