David goes to a fast food restaurant and order some tacos and burritos. He sees on the nutrition menu that the tacos or 170 cal and the burritos are 420 cal. If he order six items and consumes a total of 2020 cal how many tacos and how many burritos did David order and eat?

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