With solving systems with three variables, will medal
-2x + 2y +3z = 0
-2x - y + z = -3
2x + 3y + 3z = 5
i'm not sure how to work it out, i have to do it by elimination

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose

Pamela has a 30-year, 5.75% mortgage on her $250,000 home. she has been paying on it for 5 years, and has recently hit some financial trouble. if her lender agreed to lower the interest rate on her $231,905.47 balance to 5.5%, what will her new payment be for the remainder of the loan?

Robert is placing sod in two square shaped areas of his backyard. one side of the first area is 7.5 feet. one side of the other area is 5.7 feet. the sod costs y dollars per square foot