Calculate the following: Note: When you have 2 parentheses together, that means multiply. 13). (4 + 3) x 2 = 14). 2 x 43 x 3 + 52 = 15). (-3) (-4) (-2) = 16). (3) (-2) (6) = 17). (-5) (2) (-5) + 5 = 18). (-4) (5) + 4 =