Help! 20 Points! + Brainliest! Which expressions have been simplified correctly? Choose exactly two answers that are correct. xy^-3=1/xy^3
z^-2=1/z^2
2^-4=-16
(ab)^0=1

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.