What two facts can you double to find 8x4? explain

The parabola opens: y=√x-4 (principal square root) up down right left

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

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