I will give free brainliest to the person who answers this riddle ❓WHAT HAS A BEGINNING BUT NO END❓ AND WHAT ENDS❓ THE BEGINNING❓

Also 50 points for each answerand dont pay attention to the question marks they are just so if you try saercing it up it will take more time and you might lose the chance.

Tom drove 206 miles in 3.9 hours. estimate his average speed.

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average

Select quivalent or not equivalent to indicate whether the expression above is equivalent or not equivalent to the values or expressions in the last column.