Simplify the expression.
4[(10-4) ²÷4]
a. 6
b. 12
c. 9
d. 36

1: 4 if the wew 35 surfboards at the beach how many were short boards?

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.