The median of your data set will be 25.5
We know that the load is 8713 lbs.
The total weight (truck + load) is 17200 lb.
Then, we can calculate the weight of the empty truck as:

Answer: the empty truck's weight is 8487 lb.
T: empty truck's weight
W: total weight (loaded truck's weight)
L: Load
The equation is:
T = W - L
Answer:
a variable is a placeholder.
Step-by-step explanation:
Answer:
A negative number
When looking at a number line, there is a zero, but on the left, there's more numbers.
< -2 -1 0 1 2 >
I hope this helps.