At 15 years old, the diameter of a tree is 3.75in. At 20 years old, the diameter of a tree is Sin. a. Write an equation to represent the age and diameter of this tree. Define your variables.
b. When the tree is 30 years old, what is its diameter?
c. How many years will it take for the tree to have a diameter of 25in?

In 2000, for a certain region, 27.1% of incoming college freshman characterized their political views as liberal, 23.1% as moderate, and 49.8% as conservative. for this year, a random sample of 400 incoming college freshman yielded the frequency distribution for political views shown below. a. determine the mode of the data. b. decide whether it would be appropriate to use either the mean or the median as a measure of center. explain your answer. political view frequency liberal 118 moderate 98 conservative 184 a. choose the correct answer below. select all that apply. a. the mode is moderate. b. the mode is liberal. c. the mode is conservative. d. there is no mode.