A the IQR=3
EXPLANATION :
You have to find the middle of the data set, splitting it into two. Then find the middle number in both parts, in this case it was 2 and 5. Then subtract the second part from the first part, so 5-2, leaving you with 3.
Hopefully the picture will help a bit.
It’s the letter b) 1x10^6
Answer:
What is the equasion?
Step-by-step explanation:
X - the number of pencils
y - the number of pens
She has twice as many pencils as she has pens.

Tom borrows a pen, so she has y-1 pens. Now she has ten less pens than pencils.

Set 2y and y+9 equal to each other:
She has 9 pens.