A local phone company charges a standard rate of three dollars per call. After 1 minute the charge was $4.50. After 2 minutes th
e rate is $6.00. Susan has $10.00, how long can Susan stay on her phone?
1 answer:
Answer:
4.66 seconds
Step-by-step explanation:
4.50-3.00=1.50
10-3=7/1.50= 4.66
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