A saleswoman earns 40% commission on all the merchandise that she sells. Last month she sold $900 worth of merchandise. How much
2 answers:
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Let h be the numbers of hours, f be the one-time fee and c the cost charged. The equation is
Since you pay $15 per four, plus the fee. We can solve this equation for the fee:
If we plug c=195 and h=9, we have