A child needs to take 2 1/2 tablespoons of medicine per day in 8 equal doses. How much medicine is in each dose?

Can any one me with the answers to these questions asap?

Extra points! find the missing dimension! need asap

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.