Answer:
3
Step-by-step explanation:
Answer: 120 percent increase
72/60 = 1.2
1.2 times is also 120 percent
r = h + m
h = r - m
Switch sides.
r - m = h
Add m to both sides.
r - m + m = h + m
Simplify the left side. -m + m = 0
b
