Please help i don't get this :)

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.

Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?

Is the ordered pair (-10, 7) a solution to the equation y = 17 – x? yes or no