1. d = 4 + c , d = 1/4c , d = 2c , d = 4c (whats the correct answer)
2. f = 1/8s, f = 4s, f = s + 8, f = 8s (what's the correct answer)
3. 1/5, 1, 5, 15, (what's the correct answer?)

1 d 4 c d 14c d 2c d 4c whats the correct answer 2 f 18s f 4s f s 8 f 8s whats the correct answer 3 15 1 5 15 whats the correct answer class=
1 d 4 c d 14c d 2c d 4c whats the correct answer 2 f 18s f 4s f s 8 f 8s whats the correct answer 3 15 1 5 15 whats the correct answer class=
1 d 4 c d 14c d 2c d 4c whats the correct answer 2 f 18s f 4s f s 8 f 8s whats the correct answer 3 15 1 5 15 whats the correct answer class=