$\"\"$

Total cost = number of gallons × cost per each gallon

Total cost for 6 gallons= Cost per each gallon × 6 gallons

Total cost for 6 gallons = $\"\"$

$\"\"$ (Multiply: $\"\"$ ) $\"\"$

Check:

Your answer total cost

Cost per each gallon = $\"\"$

Cost per each gallon = $1.25 per gallon, which is matching with

the value given in the problem. So, answer is correct. $\"\"$

Total cost for 6 gallons $\"\"$