Use the Following to Answer the Beekeeping Questions Below

Multiple Choice

Use the following to answer the beekeeping questions below.
A math major turned hipster-beekeeper has determined that his profit is governed by the equation 5x - 40, where x represents the number of hives he sets up for the honey season.
-In the hipster-beekeeper's equation, 5 represents the:

A) variable cost.
B) fixed cost.
C) sales price.
D) per hive profit.