Your x will be -60 because you subtract 9x from 8x that equal-1 and you divide it by 60 because if you add 42+18 it will be 60 so you divide 60 by -1 and the answer will be -60
1/10*1700000 = 1700000/10 =170000
To find the area that is the closest, use the formula for finding the area of a circle.
A = pi x r^2
3.14 x 25^2
A = 1962.5 square feet
This is closest to answer choice D.