What are the values of

What are the values of
(a) −12 × 8,
(b) −35 / (−7),
(c) (24 − 8) × (4 + 5),
(d) (18 − 4) / (3 + 9 − 5),
(e) (22/11) × (−18+3)/(12/4)?

What are the values of