Final answer:
The expression that gives the number of shrimp that Arianna caught is 5c - 9.
Step-by-step explanation:
The expression that gives the number of shrimp that Arianna caught is option a. 5c - 9.
Let's break down the problem:
- The problem states that Arianna caught nine less than five times the number of shrimp that William caught.
- Since c represents the number of shrimp William caught, we can write this as 5c - 9.
Therefore, the expression that gives the number of shrimp that Arianna caught is 5c - 9.