The diameter of the face-off circle on an ice-hockey rink is 30 feet. Find its area.

Most animals give birth during a general time of year. this is because animals naturally breed so that their young will be born at the time of year when there will be adequate food supply. the bar graph shows the number of live births of a jackrabbit native to california over the course of year x. based on the data, which of the following would be an appropriate conclusion? a) in general, rabbits give birth during the spring months b) in general, rabbits give birth during the summer months c) in general,m california jackrabbits give birth during the spring months d) in general, california jackrabbits give birth during the summer months

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

Hi, can anyone show me how to do this problem? 100 points for this. in advance