If 9 hens lays 6 eggs each, how would you do the math? add, sub, or multiply?

need answer asap

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.

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount

Using only odd number for numerators write two different subtraction problems that have a difference of 3/4