Find out the frequency(how many there are) of each digit in the first hundred digits of pi

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation

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