D= (x:x is a straight line passing through the given point of a plane). Is this a null set? can anyone answer this question

If i have one apple and give you the apple, how many apples do i have?

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?

The box plots show the average speeds, in miles per hour, for the race cars in two different races. which correctly describes the consistency of the speeds of the cars in the two races?