Answer:
Step-by-step explanation:
Total people = 180
A) Capacity of one bus = 48
Number of buses = Total people ÷ 48
               = 180  ÷ 48
               = 3.75
So, They need 4 buses
B)
Cost of renting  a bus = $120
Cost of renting 4 buses = 120 * 4 Â = $480