The hu family goes out for lunch, and the price of the meal is $58. the sales tax on the meal is 7%, and the family also leaves a 15% tip on the pre-tax amount. what is the total cost of the meal?

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.