Help me 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.

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers?

How much is $1200 worth at the end of1 year,if the interest rate is 5.5% is compounded quarterly.