PEMDAS : First comes Parenthesis , Exponents , Multiplication, Division , Addition , and last Subtraction (in that order).
Nearest tenth value is the number right after the decimal.
31) (-5.8)^2 = 33.64 ..... 33.64 * .379 = 12.7
33) -3 * -3.2 = 9.6 ... 9.6 - 3.8 = 5.8
35) -2.8/5.2 = -.538 ... -.538 - -4 = 3.5
37) (-0.1-4.5) = -4.6 ... -4.6/4.1 = -1.1