Mathematics, 26.01.2021 23:10, annyarias3563

A residential telephone subscription cost $ 39.90, which included charging for the first 100 minutes used. If the consumer exceeded those 100 minutes, he would pay $ 0.08 per minute in excess. How much will the consumer pay if they use 320 minutes in 1 month? a) $ 37.50
b) $ 57.50
c) $ 17.30
d) $ 137.30

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A residential telephone subscription cost $ 39.90, which included charging for the first 100 minutes...