How do you find the square root of a number?

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Which of the following graphs could represent a cubic function?

Which number is located at point a on the number line? a number line is shown from negative 10 to 10 with each interval mark on the number line representing one unit. point a is labeled one interval mark to the right of negative 5.