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

Solve the system of equations. y= 2x y= x^2 - 15

What is the slope of the line that contains the points (-2,1) and (0,-3)

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.