-5x+5y=20
x-5y=-12
Solve each system by substitution

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b. you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c. you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d. you spend $5 plus $10 per week until you have less than $45.

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

How many square inches are in 60 square feet?