Please help Marcus went to the county fair, where he paid to enter and was charged for each ride. This is modeled by the expression 2x + 7. Identify and interpret the constant in the expression. Explain.

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.