Solve using the percent proportion. 20% of 80
25% of 75
90% of 180
75% of 90
120% of 1500
45% of 90
50% of 120
35% of 78
40% of 90
25% of 150
plz help. I will give brainliest for first answer

20 of 80 = 16

25 of 75 = 18.75

90 of 180 = 162

75 of 90 = 67.5

120 of 1500 = 1800

45 of 90 = 40.5

50 of 120 = 60

35 of 78 =27.3

40 of 90 = 36

25 of 150 = 37.5

hope it helps

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