Answer:
Step-by-step explanation:
If Jackson used 4 gallons of gas to drive 80 miles to Crabclaw Beach, we can calculate his gas mileage as follows:
Gas mileage = distance / gas used
Gas mileage = 80 miles / 4 gallons
Gas mileage = 20 miles per gallon
Using this gas mileage, we can calculate how many gallons of gas Jackson will use to drive 100 miles to Mount Highmore:
Gas used = distance / gas mileage
Gas used = 100 miles / 20 miles per gallon
Gas used = 5 gallons
Therefore, Jackson will use 5 gallons of gas to get to Mount Highmore if he uses gas at the same rate as he did for his trip to Crabclaw Beach.