Christopher bought 3 toy trucks that costs $14.25 each. he used a coupon for 15% off of the total purchase. rounded to the nearest cent, what was the final cost of christopher’s toy trucks. A. $36.34
B. $12.75
C. $21.34
D. $40.00

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step-by-step explanation:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

step-by-step explanation:

question

given the diagram below, what is md?

the sum of the interior angles is 360°

take away from 360 the sum of the knows angles and you will have the angle d.

360 - 108 - 108 - 72 = 72°