Answer:
3,000
Step-by-step explanation:
because if you subtract 8,000 and 5,000 you get 3,000
3000 dollars
because 8000 minus 5000 equqls 3000 dollars. write this "the shop had a 3000 dollar change in the sales between the two months"
169
if S(n)=n^2
so,S(13)=13^2
n=13
n^2=13^2
=169