Answer :
This is a problem that could be solved with proportions. Here's how to set it up.
210mi./9 gallons =413mi./x gallons
Then, you would cross multiply 9x413 then divide that my 210. The result would be the X gallons. Good Luck ♡
210mi./9 gallons =413mi./x gallons
Then, you would cross multiply 9x413 then divide that my 210. The result would be the X gallons. Good Luck ♡