the roof of a factory rises vertically 6ft through a horizontal run of 27ft. What is the pitch of the roof?

Which of the following are parts of a sphere

What is the sum of these mixed numbers 2 1/8 + 4 3/8

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed