5+21? i ned too knew right new pls

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)

Aline passes through (1,-5) and(-3,7) write an equation for the line in point slope form rewrite the equation in slope intercept form