Final answer:
The total number of members who used either the gym or the pool last week is 94.
Step-by-step explanation:
The given information states that 80 members used the gym last week, 49 members used the pool last week, and 35 members used both the gym and the pool last week. To fill out the table, we can use the formula:
Total = Gym + Pool - Both
Total = 80 + 49 - 35
Total = 94
Therefore, the total number of members who used either the gym or the pool last week is 94.