Please help Kim purchased white vases, red vases, and flowers to create centerpieces for an event. The flowers cost a total of $397 and each vase cost $8. If w and r represent the number of white and red vases purchased, respectively, which of the following expressions represents the total cost of the centerpieces? I.
II.
III.
IV.
A.
II and IV only
B.
I, II, and III only
C.
I only
D.
I and III only