Ineed with this problem, will make brainlist if answered and work shown

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

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.