Mrs. Wong find a mistake as she was grading Lola's paper. Each step should represent an equivalent expression. Which step shows the mistake that Mrs. Wong found?

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.