Please give me the correct answer. Only answer if you're very good at math. Please don't give a link to a website.​

Witch represents the inverse of the function f(x)=1/4x-12

How many grams the dog will eat in 3 days?

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.