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Lana71 [14]
3 years ago
13

Rocky pays a flat rate of $5 per month plus $0.10 per minute for

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
6 0
For his total monthly bill to be under a twenty dollars he could make a 149 calls
20-5=15
15/.10=150
150-1=149
15-.10=14.9
14.9+5=19.9
So the maximum number of calls he can make is 149 a month
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