Sin(x+22.5)=cos(x-16.5) what is the value of x?

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Which of the following is true for the relation f(x)=2x^2+1

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?