On the floor plan shown at the right,
1.25 inches represents 2 feet.
a. What is the actual length of the
entire floor?
b. What is the actual area of the entire
floor? Explain how you found the area.

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

The data set represents the ages of players in a chess club. 27, 34, 38, 16, 22, 45, 54, 60. what is the mean absolute deviation of the data set?