please help solve this question. First, one to truly answer gets points and brainiest. PLEASE DO NOT ANSWER IF YOU'RE NOT SURE OR IF YOU DO NOT KNOW THE ANSWER PLEASE DO NOT TRY AND SCAM AND TRY AND ANSWER JUST FOR THE POINTS.

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.

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

Extra points! find the missing dimension! need asap