Answer:
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Step-by-step explanation:
By pythagorean theorum we calculate the height:

=
= height of triangle
area of triangle = base * height
area = 
There are two triangles so:

Multiply this by 13.25 to get total cost:
=$259.65
Answer:
6. x=4
7. x=9
8. x= 13
Step-by-step explanation:
Answer:
49/83 = m
Step-by-step explanation:
49=83m
Divide each side by 83
49/83 = 83m/83
49/83 = m