Can someone answer B for me please and thank you sm
1 answer:
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The change is given by the difference between how much you paid and how much you actually had to pay. For example, if you pay with a $50 bill and you had to pay $13, your change will be dollars.
In this case, we have
So, Gabriel's mistake was to leave the negative sign to the "-2" at the end of the expression, instead of flipping it to positive "+2" when subtracting it.
Answer:
So using the same formula that we came from the last question
We find for C by making C the subject of the formula
We now evaluate
Therefore the class need to sel 128 candles to make 803 dollars