Davids's bowling score is 5 less than 3 times Aarons score. The sum of their scores is 215. Find the score of each student.

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean

What is the total surface area of this square pyramid?

Factor and solve to find roots x squared -x - 90 =0