Jim had 2.3 gallons of milk. if he drinks 1.2 quarts of milk every day how much milk will be left after 5 days?

I'm not sure if this is right because I'm not familiar with the gallon/quarts system, but I looked it up and 4 quarts make a gallon--is this right?

So Jim originally had 2.3 x 4 =  9.2 quarts~
How many quarts does he drink in 5 days? (multiply the amount he drinks per day by 5)
You then subtract the amount he drank from the original 9.2 quarts to get the answer :)

Can you get the answer from here? I'll be here to guide you if you can't <3

The answer would be: b