I need some help, its my last question on a quiz and so if i get another one wrong, it would be the same as throwing my grade out the window, i need help

4+(2+x) can you me solve this problem

What else equals 42 and 30 for multiply

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.