To stay competitive with the fast food restaurant across the street, the Pico de Gallo Restaurante offers a taco lunch special. Each plate has an 80 cents charge for beans, rice, and guacamole, and each
taco costs 75 cents.

Senora Taquita, across the street, charges 35 cents for the beans, rice, and guacamole,
and 90 cents for each taco.

a. Write an equation to show the total cost of lunch at each restaurant. Be sure to define your variables.

b. For what number of tacos is the cost of lunch at each restaurant the same? What is that cost?