Final answer:
To find the cost to fill a 12-gallon tank, one multiplies the cost per gallon by 12. Using the price of $1.60 per gallon from the information provided, the total cost would be $19.20.
Step-by-step explanation:
The student has asked how much it would cost to fill a 12-gallon tank at $43.78 per gallon.
This question relates to a simple multiplication problem within the subject of mathematics, appropriate for a middle school level.
To calculate the total cost of filling a 12-gallon tank, one would multiply the number of gallons by the cost per gallon.
However, the price provided, $43.78 per gallon, seems unusually high and possibly like a typo.
To provide an example using the reference information provided, one could calculate the total cost using a different price per gallon.
For instance, if we use $1.60 per gallon, the calculation would be 12 gallons × $1.60/gallon = $19.20.
The total cost to fill a 12-gallon tank at $1.60 per gallon would be $19.20.