Find an equivalent fractions for each given fraction 70/10

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?

Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.

Which geometric principle is used to justify the construction below?