There is a mistake 9,12,13 is not a right triangle. but 9,12,15 is. IF you use this triangle instead, then the area of the 13,14,15 triangle is the sum of the area of the other two triangles.
I'm sorry but I know the answer is deffinetly c or d
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Answer:
39
Step-by-step explanation:

8.68x when x=the amount of hours you have worked
So do 8.68*16
Which equals $138.88