Mathematics, 14.04.2020 19:40, ella3714

When wiring a house, an electrician knows that the time she will take is given
by the formula
Time = 2 hours + 12 minutes per lightswitch
She charges her customers a call-out fee of £35, plus £30 per hour.
How much should a customer be charged for wiring a house with
10 lightswitches?

Answers: 2

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When wiring a house, an electrician knows that the time she will take is given
by the formula<...