A box contains m marbles. a) How many marbles are there in the box when:
i) 3 marbles are taken out of the box
ii) x marbles are added to the box?

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.