Lakita is going to plant trees and bushes to landscape her new yard. She cannot exceed her budget of $150. Each tree costs $45, and each bush costs $20.

Which inequality correctly represents the situation, where t is the number of trees and b is the number of bushes Lakita purchases?

45t+20b≥150

45t+20b<150

45t+20b≤150

45t+20b>150