Gabriela bought a new pair of glasses at the store when they were having a 30%, percent off sale. if the regular price of the pair of glasses was $72, how much did gabriela pay with the discount?

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.