Ihave 12 shirts, 4 pairs of shoes, 5 pants, and 3 watches. how many days can i go without wearing the same 4 items

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.