Just need some help please

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.

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.

An equation in slope-intersept form the lines that passes thought (-8,1) and is perpindicular to the y=2x-17.