45/5 = 9 jams a day
x/7 = 9
x= 63 jams a day
Hope this helps!
A company is selling books. It has to pay $500 to start printing the books, and once they have done that, the books sell at $14.99 each. How many books must they sell to make a profit?
First we would model an equation. X will be the amount of books sold, and Y will be profits (in dollars obv). They had to pay $500 before they could start selling, so we must account for that too.
This equation would be

because for every book sold, X increases by 1, increasing Y by 14.99
The answer would be 34 books sold in order to turn a profit. (500/14.99=
7/8 boats per day will make it
Divide the paper which is 21 inches (12+9) by 1.5 and you have your answer which is 14