Urgent! Math help! Answer?

12/13

Step-by-step explanation:

First, use the pythagorean theorem to find EF

5^2 + EF^2 = 13^2

You get: EF = 12

Sin is opposite over hypotenuse. 12 represents the opposite and 13 represents the hypotenuse.

47 - 90 = 43

43 - 180 = x

x = 137

$452.90 because you needed to round to the nearest cent