In the image, pretty sure 24 is a plane. Not sure about 23.

answer: y = -12x + 108

step-by-step explanation: do (y = m x+b) formula.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

9 x 8 divided by (5-3)=36

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.