What is the length of side BC of the triangle

Which rational number could be graphed between -4 and -5

Which expression is rational? 6. , square root two, square root 14, square root 49

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.