5/12 because 1/1 is a whole, 1, so all you have to do is 1 - 7/12.
A. The slope is 3.75 because that’s how much the total cost is increasing by when a drink is being added
B. The y-intercept is 6.25 because that is the total cost when the number of drinks(x) is zero.
C. y=3.75x+6.25
