Which proportion can be used to show ac and df have equivalent slopes

How do you summarize data in a two-way frequency table?

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

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