Select the equivalent expression. (3 •5)^6 =? a. 3^11 b. 3•5^6 c. 3^3 • 5^3 d. 3^6 • 5^6

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.