Helen borrowed
$8,000
from her grandfather to pay for college. five years later, she paid him back the
$8,000
and an interest of
$1,200
. what was the annual interest rate?

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