Mr. Sykes will pay a river rafting company a flat fee of $90 to rent a boat for 3 hours. When he returns the boat, he will pay x dollars for any damage he might have caused. Which equation can be used to find d, the total number of dollars Mr. Sykes will pay the company for renting a boat for 3 hours?

A d = x + 90

B d = 3x

C d = 90x

D d = x + 3

A d = x + 90

Step-by-step explanation:

The minimum amount that Mr. Sykes will have to pay to rent a boat for three hours is $90. Since this is a flat fee and not a charge per hour, there is no need to multiply this fee by 3. Also, the additional fee that may be charged would be for any damage he might have caused during his rental. However, if there is no damage, this fee would be $0, making his total just $90. The best choice would be:

A d = x + 90

Because there is only a flat fee of $90 and a possible flat fee for damage.

I think it's A I'm not sure though