Use Cramer's rule to find the solution to the following system of linear equations. -4x+9y=9
7x+ 7y=9

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation

Simplify 1/3 12x - 6 a. -2x-1 b.-2x-8 c.-x+4 d.3x+10 e. 4x-2

The daily production of a company is modeled by the function p = -w^2 + 75w - 1200. the daily production, p, is dependent on the number of workers (w) present. if the break-even point is when p=0, what are the least and greatest number of workers the company must have present each day in order to break even? 50 points! will give brainliest!