A caterer charges $939 to cater a wedding plus $8 per person served a meal. Write a linear model that relates the cost C (in dollars) to cater a wedding to x the number of people served a meal.

A) $C=947x$
B) $C=8+939x$
C) $C=8-939x$
D) $C=939+8x$
E) $C=7,512x$

The cost to cater a wedding has two components. The first is the fixed cost of $939, which is charged regardless of the number of people served a meal. The second component is the cost per person served, which is $8. Therefore, the linear model that relates the cost to the number of people served a meal is given by:

C = 939 + 8x

where x is the number of people served a meal.