Mary spent a total of $290.28 for a party. She spent $200.22 on food, plus an additional $30.02 for each hour of the party. How long was the party?

3 hours

Step-by-step explanation:

290.28-200.22=90.06

90.06/30.02=3

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

14.29%

step-by-step explanation: