Answer: 70.00$
Step-by-step explanation:
The question states that it takes 20 gallons of gas to get there, and the cost of three gallons of gasoline is $10.50.
so
20/3 * 10.50=70$
513 as a percentage of 900 can be re-written as;

= 57 percent
Number of CDs Kitts sold last week = x = 84
Number of CDs she sold this week = y = 26
Hope this helps :DD !!