The length of rectangle is 3 cm longer than its breadth. If the perimeter of the rectangle is 54 cm, find its length, in cm​

The volume of a cube is 8 in to the 3rd power. how long is each side?

What is the missing step in this proof ?

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