Use the following data set to answer the questions. 13 15
20
20 20 20 20 20 23 27 31
20
a. What is the mean?
b. What is the mode?
c. What is the median?
d. What fraction of the numbers in the data set are less than the median?
e. What fraction of the numbers in the data set are greater than the median?

Describe what moves you could use to create the transformation of the original image shown at right

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.