10 points and brainliest picture attached

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.

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?

D. in a discrete probability distribution, the sum of the probabilities for the discrete variables will be > 1. true or false