Going against the current, a boat takes 6 hours to make a 120-mile trip. When the boat travels with the current on the
return trip, it takes 5 hours.
If x=the rate of the boat in still water and y = the rate of the current, write an expression that represents the rate of the
boat going with the current. Type the expression in the space provided. Type only lowercase letters and do not use spaces in your answer.