6tractors take 6 days to pick the harvest. how long would it take 15 tractors to do the same amount of work?

Can someone me i’m confused. will give brainliest and a whole bunch of points

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 average diastolic blood pressure for adults