A movie theater ticket booth opens at 10 am. There are four tellers who divide the customers evenly. The tellers have served 16 customers so far this morning. which expression represents the unknown number of customers each teller will serve? Let c represent the additional number off customers.

a: 16 + c OVER 4

b: 4(16 + c)

c: c - 16 OVER 4

d: 16c OVER 4

The correct expression that represents the unknown number of customers each teller will serve is option a: 16 + c OVER 4.

To find the expression that represents the unknown number of customers each teller will serve, we need to divide the total number of customers by the number of tellers.

Given that the tellers have already served 16 customers, and there are four tellers, we can represent the total number of customers using the equation:

Total Customers = 16 + c, where c represents the additional number of customers.

To find the number of customers each teller will serve, we divide the total number of customers by the number of tellers, which is 4.

So the expression that represents the unknown number of customers each teller will serve is:

a: (16 + c) / 4