A ladder 30.7 feet long reaches to the top of a building when its foot stands 11.5 feet from the building. How high is the building? Round to two decimal places.

I’m confused on how to work the pie charts

How do you find the distance of each number from the mean

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.