Question

help me in solving this guys..
1. draw three concentric circles of radii 1.5 cm,2.5cm and 3.5 find distance from first circle to three circle
2.find the average of the first and last term .
3. write formula for eclid' s division lemma.
4. find prime factorisation method of fundamental therom of Arithmetic.
4. pt n!+n!=n!( n+2)

Answer 1

sorry but I don't know the answer