Can you PLEASE answer number 16 and 18!

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

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.