in a basket there are 24 sweet oranges. The ratio of sweet oranges to sour oranges is 4:1 find the number of sour oranges. Pl help with this question!!!

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.