Nellibell's Café Bakes Croissants That Are Sold to Local Restaurants

Multiple Choice

Nellibell's Café bakes croissants that are sold to local restaurants and grocery stores in the Columbia, South Carolina area. When 600 croissants are baked, the average cost is $0.70. When 720 croissants are baked, the average cost is $0.65. What is the total cost when 670 croissants are baked?

A) $568.
B) $588.
C) $448.
D) $532.
E) $500.