Answer:
In order to find the fraction of the 20 dollars that has been spent, we have to divide the amount spent by the total amount. So 0.65 is the fraction of 20 that is spent.
Step-by-step explanation:
105
subbing x for 7:
3*7(7-2)=21*5=105
<u><em>Remark</em></u>:
You can simplify moreover if you want to.