Let the number of pants have to be made be x.
So,
9.55 * x = 525.00
x =

≈ 54.97
Thus, the number of pants have to be made are 54.
Check the picture below.
make sure your calculator is in Degree mode.
The answer for this problem is b
A= bh(1/2)
a=12(14)(1/2)
a= 168(1/2)
a= 84inches