Aservice call to repair a washing machine costs $35 plus $20 per hour. raphael ‘s machine took 2 hour to fix. how much did the repair cost ? f. $50.00. g. $55.00. h. $65.00 i. $75.00

There is a mandatory fixed rate of $ 35 that Raphael will have to pay once the service call has been made. This fixed rate is the constant.

The per hour rate is $20. Suppose the machine took "x" hours to get fixed. Then the variable part of the repair cost will be .

Thus, Repair Cost=Fixed Rate Cost+Variable Cost

Or, where is the total repair cost. Thus, if Raphael ‘s machine took 2 hour to fix, the repair cost is:

dollars.

Therefore, the last option is the correct option.