Well there's 10 minutes in the second part so first 48/2 is 24. Now 24/4 (since there's 4 people so far) is 6, now 6*6 because there's now 6 people in total so the final answer is 36 in 5 minutes
Remember that to tell if a function is linear for a table, you should look for a constant rate of change, and the only function that has a constant rate of change is the first one.

is increasing by 1, and

is increasing by 0.5.
Now that we know that, lets find the equation of our table.
First, lets take tow points from our table: (1,

) and

.
Next, use the slope formula:
We know for our points that

,

,

, and

, so lets replace those point in our formula to find

:


Finally, we can use the point slope formula

to find our equation:



We can conclude that the first table represents a linear function, and its equation is
Answer: about 22 minutes
Explanation: its hard to explain but trust me i checked my work