Which algebraic expression is represented by the model?
a. 3(3x + 9)
6
b. 3x(x + 3)
C. 3(x + 3)
d. 3(x + 9)

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

The price for gasoline is represented by the equation y=3.69x, where y represents the total price for x gallons of gasoline. on a graph, the number of gallons is represented on the horizontal axis, and the total price is represented on the vertical axis. determine whether each statement describes the graph of the equation. select true or false for each statement