What is the correct answer?

100 sq cm

Step-by-step explanation:

area of the rectangle

10x8=80

area of the triangle

8x5=40/2=20

80+20=100

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

the answer will be b x² +x-1

step-by-step explanation: