PLEASE HELP!
The graph below shows the relationship between the number of batches of brownies, b, and the number of cups of flour, f, required. Based on the information in the graph, which equation can be used to predict how many cups of flour are needed for 10 batches of brownies?
A) f = 2.5b + 10
B) f = 2.5b
C) f = 10b + 2.5
D) f = 10b