!!please help quick

The functions f and g are defined as follows:

f(x) = 1 - 3x and g(x) = x2 - 1.

(i) Find fg(3).
(ii) If fg(x) = -8, find the value(s) of x.

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?

The graph shown is the graph of which function?

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with