Answer:
[tex]55b\geq 330[/tex]
Step-by-step explanation:
Let
b------> the number of buses
we know that
[tex]55b\geq 330[/tex] ----> inequality that represent the solution
solve for b
Divide by 55 both sides
[tex]b\geq 6\ buses[/tex]
The minimum number of buses is 6