14.25+2.30=16.55 so, dr spent $16.55 on school supplies
6xy^2 - xy + 8 + 12y is a polynomial of degree 3
You seem to already see that you need to multiple x with the other numbers. When you start off solving it you'd get.. x-6=x2(to the power of) + 6x . Then just move the equation over from the left to the right. and solve, I've got -6+x2(power of 2)+7x, that's it
C! Look at the question again
