Which of the graphs below would result if you made the leading term of the following function negative?
F(x) = x2 + 3x2
A. Graph A
B. Graph B
C. Graph C
D. Graph D

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.