20 POINTS Katie has $120 on her cafeteria card. Every time she orders a meal, $4.50 is deducted from the value on her card. The amount of money she has on her card, y dollars, is a function of the number of times she orders a meal from the cafeteria, x.

a.) Write an algebraic equation for the function.

b.) Construct a table for x and y values for the function above. Use values for x from 0 to 5.

c.) How many meals has Katie ordered from the cafeteria if she
has $70.50 left on her card?