Answer:
I don't speak Spanish
Step-by-step explanation:
Look it up after opening up a new tab
Answer: 0.5 inch
Step-by-step explanation:
Given
On hammering nail advances
each time
Annalee hammered 4 times
So, total advancement of nail= 
Hello,
n=1,2,3,.... and not 0
Answer B a(n)=-2*n