Question 1 simplify. 14 – 6.2 • (–3 + –7) a) 76 b) –48 c) –78 d) 78 question 2 simplify. –3 • 5 – 7 • 4 a) –13 b) 13 c) –43 d) 43 question 3 evaluate the expression when x = –12. 3x – 17 a) 53 b) –53 c) –19 d) 19 question 4 evaluate the expression when x = –8. 7x + 5 a) 4 b) 51 c) –51 d) -4 question 5 evaluate the expression when r = 8.2 and s = –3.7. r – 2s a) 15.6 b) 0.8 c) –22.94 d) 4.5