Respuesta :
If Joanna works 8 hours and sells an appliance for $900 her total earning is $180
She earn $18 per hour plus a 4% commission on each appliances she sale.
If she works 8 hours and sell an appliances for $900 her total earning can be calculated as follows:
Total earning
- (18 × 8) + 4% of 900
Therefore,
144 + 4 / 100 × 900
144 + 36 =$ 180
Therefore, Joanna earned $180 in total.
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