For your birthday, a friend gave you a $30 Java Hut card. Java Hut charges $3.75 per drink for your favorite beverage. If you only buy your favorite beverage, express the amount of money remaining on the card, (), in terms of the number of drinks, , your purchase with the card.
a. Interpretation
b. interpretation
c. linear function
If $18.75 is left on the card, how many drinks have you purchased with the card?