Find the value of the expression

p + 9 − 9 ÷ q − 9

for p = 4 and q = 3.

1

Step-by-step explanation:

p + 9 - 9 ÷ q - 9

p = 4 q = 3

= 4 + 9 - 9 ÷ 3 - 9

= 4 + 9 - 3 - 9

= 1

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

the first one, all those points on the line just make a strait line.