Could someone please help?

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

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.

Why is x= 4 a solution to the proportion 14/x 56/1 6