The ratio off the area of the base of a cylinder to the curved surface area of the cylinder is 1:4. if the radius of the cylinder is 4cm, find the height of the cylinder ​

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.