3 Simplity the following rotic's = 4:16​

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)

What is the base of 1/9 to the power of 2

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?