For questions 22 and 23, your teacher will grade your response to ensure you receive proper credit for your answer. Look at the given triangles. 7x + 7 2x-5 4x + 2 x+7 5x - 4 a. Write an expression in simplest form for the perimeter of each triangle. b. Write another expression in simplest form that shows the difference between the perimeter of the larger triangle and the perimeter of the smaller triangle. c. Find the perimeter of each triangle when x = 3.