Mathematics, 15.12.2019 07:31, kh3791

Sara’s telephone service costs $21 per month plus $0.25 for each local call, and long-distance calls are extra. last month, sara’s bill was $36.64, and it included $6.14 in long-distance charges. how many local calls did she make?

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Sara’s telephone service costs $21 per month plus $0.25 for each local call, and long-distance calls...