Help please help i’ve been stuck on this for days it’s due tonight help

Someone . me. compound probability

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

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.