A telephone company offers the following plan:
$10 per month buys 120 minutes.
• Additional t...
Mathematics, 20.09.2020 09:01 fnaflover8505
A telephone company offers the following plan:
$10 per month buys 120 minutes.
• Additional time costs $0.30 per minute.
1) Write down the cost function to model the plan. ( 4 points)
2) How much does it cost for using 240 minutes? (4 points)
Answers: 1
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