dropped $3 means "-3", increased $6 means "+6"
the price dropped twice so 2(-3) and increased once by 6
so, 2(-3) + 6 = 0
the change in price is $0
Answer:
1/81
Step-by-step explanation:
Answer: 150 minutes
Step-by-step explanation:
1.5 pounds in 45 min
5 pounds in X times
Using proportionality:

The difference in the averages depends on the range between the gas prices and how often they appear in the given set of data.