Final answer:
The capacity of the roller coaster is 48 customers.
Step-by-step explanation:
In order to find the capacity of the roller coaster, we need to multiply the number of carriages by the number of customers each carriage can hold. In this case, the roller coaster has 6 carriages and each carriage can hold 8 customers. So, the capacity of the roller coaster is 6 carriages multiplied by 8 customers per carriage, which equals 48 customers.