Answer:
Percent change is comparing one current number or value to another.
Percent difference is comparing a number or value to another number or value.
Step-by-step explanation:
Answer:
0.72
Step-by-step explanation:

Answer:
He used 13.92 gallons of gas.
Step-by-step explanation:
19.22-5.3=13.92
72 is the denominator because 24 multiplied by 3 is 72 and 18 multiplied by 4 is 72
45 plus 67 gives you a number