Answer:

Step-by-step explanation:
Let's pretend the empty, white space in the middle is a triangle. A right triangle. then we just use the pythogerean theorem to get the a.

Answer:
The median is: 2
Step-by-step explanation:
First put the numbers in ascending order:
-19, -13, -4, 1, <em><u>2</u></em>, 5, 9, 14, 15
The value in the middle will be the median.
Answer:
what is the question exactly??
Step-by-step explanation:
There are 4 students who have piercings both on their ear and their noses.
Answer: I think you have to add a negative number by a positive number like -10+5
Step-by-step explanation: