the difference between a number divided by 3 and 4 is 20. - = 20 multiply by 12 4n - 3n = 12(20) n = 240 is the number
and, Aubrey has $120 to spend on a tennis racket and lessons. The racket costs $45 and the lessons cost $15/hr. How many hours of lessons can she afford? hrs = hrs = 5 hrs
