Steven charges the following for repairing washing machines: £24 call-out charge + £14 for each half-hour he spends on the repair if a repair costs a customer £66, how long did it take?

Steven charges the following for repairing washing machines:

£24 call-out charge + £14 for each half-hour he spends on the repair
if a repair costs a customer £66, how long did it take?

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Steven charges the following for repairing washing machines: £24 call-out charge + £14 for each half-hour he spends on the repair if a repair costs a customer £66, how long did …

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