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