Score Frequency
1
a
5
2
4
Mean score= 5
What is a?

Need plz been trying to do it for a long time and still haven’t succeeded

What is the area of the shaded sector?

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.