What is 4 divided by 2.42?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Find the roots of the equation below. x^2 - 6 + 9 = 0

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1