8. Sara is one year older than Fred. In five years Sara will be twice as old as Fred was six years ago. Find their ages now

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

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State one method by which you can recognize a perfect square trinomial.