Sean rents a tent at a cost of $11 per day plus a onetime insurance fee of $10. Which equation represents the total cost c, in dollars, to rent the tent with insurance for d days?

Explanation

Choice C is correct. It's given that the cost of renting a tent is $11 per day for d days. Multiplying the rental cost by the number of days yields $11d, which represents the cost of renting the tent for d days before the insurance is added. Adding the onetime insurance fee of $10 to the rental cost of $11d gives the total cost c, in dollars, which can be represented by the equation c = 11d + 10.