Evaluate. Express your answer to the nearest tenth, if necessary.

a) 5.3 ÷ (−8.4)

b) −0.25 ÷ (−0.031)

c) −5.3 + 2.4[7.8 + (−8.3)]

d) 4.2 − 5.6 ÷ (−2.8) − 0.9


~giving brainliest!~