The mathematical term parallel lines explicitly uses the undefined term(s)

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.