Three ice cream shops have provided quotes for catering Martina’s ice cream party. Each store charges a delivery fee in addition to a price per person.

Each store gives Martina its pricing plan in a different way, as shown below, where C is the total cost in dollars and n is the number of people who will attend the party.


Igloo Ice: C(n) = 1.75n + 75

Fred's Freeze: C(n) = 2n + 80

Tasty Treats: C(n) = 1.25n + 90


Which store has the lowest delivery charge: Igloo, Fred's, or Tasty?