What is the area of a trapezoid with bases of 8.2 cm + 5.9 cm and a height of 10 cm will mark brainiest

Trapezoid area = ((sum of the bases) ÷ 2) • height
Trapezoid area = [(8.2 + 5.9) /2] * 10
Trapezoid area = (14.1 / 2) * 10
Trapezoid area =7.05 * 10
Trapezoid area = 70.50

Source:
http://www.1728.org/quadtrap.htm

32

step-by-step explanation:

these are your clues: 1. kim ran 18 races2. this was four fewer races than twice thenumber, notice it says twice the number, so you would do the equation 18x2-4; which equals the number 32.thus, 32 is your answer.