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Part a: If she earns $960 but spends $680 daily, then this means she will have $280 by the end of each day. Numerically, this would look like .

Part b: In order to start making a profit, she will need d days for it to exceed 52000. If she pays $280 per day, then we set up an inequality.

For her to start earning a profit, the following inequality must be true:

If you isolate b and divide both sides by 280, then the variable d will be 185.7, but this does not exceed 52000, so in order for it to be true, she must have 186 days to start making a profit.

554.4

step-by-step explanation:

44*12.6=544.4