Cara is building a sand castle in the shape of a triangular pyramid. the area of the base is 7 square feet. each side of the base has a length of 4 feet and the height of each face is 2 feet. what is the surface area of the pyramid?

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