8 x 4 = (? × 7) - (? × 3)

8 x 4 = ( 5 x 7) - ( 1 x 3)

Step-by-step explanation:

7 x 5 = 35

3 x 1 = 3

so 35 - 3 = 32

8 x 4 = 32

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315

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