Pg4 Six flags amusement park xharges a $69.95 admission fee. Riders can pay $2.00 to skip to the front of the line.

David is very inpatient and always buys a front of the line pass for $2.00. Write an equation in intercept form for calculating the total cost, C, of going to the park and riding r rides, given that David always buys a front of the line pass.