is the equation in the question written like the one in the bottom? Because for me to help you I must confirm what the equation looks like.
× 
She made an error in the STEP 1
she shouldnt multiply the numbers
The answer is n= -1.
Hope this helps
Answer:
B, irrational
Step-by-step explanation:
We know that π is irrational, since it can not be written as a division between natural numbers (a sub class of Real numbers called N), it's value is 3,1415(a whole bunch of decimals after this)
If you remove the decimal part of π by subtracting the integer part of it, that is the number 3. the result will still being and irrational number
Since π= 3(the rational part) +0,1415... (the irrational part)
The resut of π-=3= 0,1415...
