Please I need help ASAP or atleast an understanding of this

Ihave trouble finding the nth term of a linear sequence

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.