Which equation can be used to find the value of B if side a measures 8.7cm the perimeter of the triangle is 54.6

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

Explain how you can show five less than a number using an algebraic expression

Write a function rule for  “the output is  5 less than the input.” let  xx  be the input and let  yy  be the output.