Question 778221
Assign variables to everything.


E = fuel efficiency, 4.4 mpg
d = distance expected, 55 miles
p = diesel fuel price, 3.67 dollars per gallon
y = cost expected for the trip just in fuel, unknown. Dollars.


Start with d, and use the ratios E and p.  You are looking for a formula for y.  Just watch the units carefully in forming your formula.  
y=d*(?)*(?)
{{{y=d*(what)(whatelse)}}}