4 cookies cost $7. At this rate, how much will 9 cookies cost?

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36

Triangle abc was translated 2 untits to the right and 3 units down. write the algebraic rule that describes the translation that was applied to triangle abc to create triangle a'b'c'.