I NEED HELP WITH MATH! SOMEONE PLEASE ANSWER THESE, ITS FOR A QUIZ!!

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.

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

Which of the following represents the range of the graph of f(x) below