Me to find the answer to the question

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

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

In the diagram of circle o, what is the measure of zabc?