an airplane flying at an altitude of 28,000 ft., spots a runway at an angle of depression of 29. what is the horizontal distance from a point directly below the plane to the runway

Arecipe uses 2 cups of sugar to make 32 brownies. how many cups of sugar are needed to make 72 brownies?

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

I’m stuck on this equation, anyone got the answer?