Alanna can detail a car in 45 minutes. robbie can detail a car in 30 minutes. if they work together, how many minutes does it take them to detail a car? (2 points)

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.