Answer:
$420
Step-by-step explanation:
(100 - 40)x = 60x
60x - 20 = 40x
0.4x = $168
x = $168/0.4 = $420
Answer: y= 2
Step by step: Multiply 2 and 1 to get 2
1. 17 + (-15) = 17 - 15 Answer: C
2. -5 - x = 14, -5 - 14 = x, x=-19 Answer: F
3. -5 - -14 = -5 + 14 = 9; all the others are negative. Answer: B
4. 1885 - -2500 = 1885 + 2500 = 4385 Answer: G
5. -18 - 27 - -15 = -18 - 27 + 15 = -3 - 27 = -30 Answer: B