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Mathematics, 18.11.2019 03:31 Laocean9281
Jack charges $40 initial fee plus $30 an hour to work on vehicles. mark charges $25 an hour with a $50 initial fee. to work on vehicles. at what number of hours do they charge the same amount? how much is this amount?
write the system.
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Jack charges $40 initial fee plus $30 an hour to work on vehicles. mark charges $25 an hour with a $...
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