f(x)=5x2+9x−4 g(x)=−8x2−3x−4 Find (f+g)(x). Select one: a. 3x2+6x−8 b. −3x3+6x2−8x c. −3x4+6x2−8 d. −3x2+6x−8

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.