18. Three restaurants sell turkey sandwiches in a small town: Delicious Deli, Garden Fresh, and Uptown Eatery.
• Delicious Deli sells 5 turkey sandwiches for $20.00.
• Garden Fresh sells 2 turkey sandwiches for $8.50.
Uptown Eatery sells 3 turkey sandwiches for $13.50.
The relationship between the cost, y, in dollars, of a turkey
sandwich and the number of sandwiches, x, purchased at
Delicious Deli can be modeled by a proportional equation.
Enter the answer in the space provided.
The equation is y =x