25 cars in 5 days: 60 cars in 12 days what is the unit rate step by step

Find the value of the cosine for angle a

Einstein office equipment has a rental plan for office machines. a fax machine that lists for $722.98 can be rented for 22% of the price annually. the state imposes a usage charge of 3.2%. if stephen hawking travel decides to rent the fax machine, what will its total monthly rental charge be?

I'm confused on how to solve the triangle. can someone me ?