A tile is a square with an area of 64 cm square

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Solve x+3y=6 and 4x-6y=6 by elimination . show work !