If the sales tax in your city is %12.0 and an item costs $109 before tax, how much tax would you pay on that item? round to the nearest hundredth or cent.

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

14

step-by-step explanation:

14 x 3 = 42