HELP PLS!! answer quickly

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f(x) between x = 0 and x = 10.

Ranck the following in order from least precise to most precise