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Mathematics, 16.02.2021 03:20 b00n4l1f3

Help Me Please A repairman charges an inspection fee plus $20 per hour. A customer
with a coupon for 40% off the inspection fee pays $110 for a 4-hour repair.
How many hours are worked when a customer pays $90 without a coupon?

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Help Me Please A repairman charges an inspection fee plus $20 per hour. A customer
with a cou...

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