Step-by-step explanation:
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Answer:
C. 10
(4w + 10) + 130 = 180
4w + 140 = 180
4w = 40
w = 10
10,000
53.55 / 85 = 0.63
0.63 * 100 = 63
63 - 38 = 25
watch was 25 before discount
212/14=15
B. y = f(x-4)