Letter tiles spelling TEXAS are placed into a bag. Lisa chooses a tile, replaces it, and then chooses another tile. What expression could represent the probability that she never pulls out an 'X'

What is the approximate circumference of the circle shown below?

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

A. plot the data for the functions f(x) and g(x) on a grid and connect the points. x -2 -1 0 1 2 f(x) 1/9 1/3 1 3 9 x -2 -1 0 1 2 g(x) -4 -2 0 2 4 b. which function could be described as exponential and which as linear? explain. c. if the functions continue with the same pattern, will the function values ever be equal? if so, give estimates for the value of x that will make the function values equals. if not, explain why the function values will never be equal.