Answer:
the answer is negative numbers for 6
In this exercise we have to use subtraction knowledge to calculate the final value of the equation, like this:
Letter C
<h2>What is subtraction?</h2>
It is a mathematical operation in which it is possible to find a quantity by decreasing one number by another, it is opposed to addition, being represented by the minus sign.
So make the calculus we have:

See more about subtraction at brainly.com/question/4319655
Answer:
I think it's measure of distance.
let me know if that is right
Answer:
The median is 20.
Step-by-step explanation:
When lined from least to most (15, 20, 20, 22, 25) 20 is the middle number.