Final answer:
The equation that represents the cost per vehicle is t = 7 + 2p. 't' represents the total cost and 'p' represents the number of people in the vehicle. To calculate the total cost, you add $7 to the product of $2 and the number of people in the vehicle.
Step-by-step explanation:
The equation that represents the cost per vehicle is t = 7 + 2p.
In this equation, 't' represents the total cost and 'p' represents the number of people in the vehicle. The drive-in theater charges a fee of $7 for a vehicle to enter and an additional $2 per person in the vehicle. Therefore, to calculate the total cost, you add $7 to the product of $2 and the number of people in the vehicle.
For example, if there are 3 people in the vehicle, the equation would be: t = 7 + (2 * 3) = 7 + 6 = 13. So, the total cost would be $13.