Subject Finite Mathematics Solve the problem Please show you

Subject: Finite Mathematics. Solve the problem. Please show your work/explain.

Suppose a traveler wanted to visit a museum, an art gallery, and the state capitol building. 45-minute tours are offered at each attraction hourly from 10am to 3pm. (6 different hours.). Solve the problem, disregarding travel time.

19.) In how many ways can the traveler visit all three places in one day?