Answer:
4^2 + 3 - 2 * 3 = 16 + 3 - 6 = 13
2^2 * 8 / 2 + 2 = 4 * 8 / 2 + 2 = 32 /2 + 2 = 16 + 2 = 18
(4^2 + 16) + 12 = (16 + 16) + 12 = 44
8 * 3^2 + 3 = 8 * 9 + 3 = 72 + 3 = 75