Solve the system r + s = - 12

4R - 6s = 12

A. - 4,-8

B - 6,-6

C - 4,8

D Infinitely many solutions

A certain alloy contains 5.25% copper. How much copper is there in a piece weighing 200 pounds?

Leonard used 2/7 of his paycheck to pay his cell phone bill and put 1/3 of his paycheck savings. Based on the amount of money left, which of the following are amounts he could spend on a new video game

Evaluate f (9) given f (x) = -x+7

Mary sent out invitations to her wedding last week. The invitations were heavy, so put more than just one stamp on each envelope. She use 255 stamps and mailed out 85 invitations.

One number is twice another. Their product is 128. Find the numbers.

Shirley has a credit card that uses the previous balance method. The opening balance of one of her 30-day billing cycles was $2830, but that was her balance for only the first 2 days of the billing cycle, because she then paid off her entire balance

Susan have 13 watch and Sam has 24 watch to wear how many more they have left

What is the answer to 2: 1/3

In his physics class, Mario discovered the height, h, in feet of a bouncing basketball after b bounces is given by the formula: h=12 (2/3) b is this growth or decay

Find - x when x = - 49/34