Find the sum of x^2+3x and
-2x^2+9x+5

Franco wants to double the volume of the cone. what should he do?

What function has a range {yly< 5}? question on picture above^

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.