What is the horizontal displacement of the basic graph of y=pi-3cos(x-2)?

How do i do this activity, is appreciated

What is the total surface area of this square pyramid?

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.