Evaluate 5a+3 4b when a = b - 4and b = -2.

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

How do you determine if an ordered pair is a solution to a given equation?

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.