pls help im having my finals 2morrow. and pls dm me at jes. tung on ig if yo hv freetime i want you to help me on my finals

Iam so stuck. what is the worked out answer for this question?

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.

If i have one apple and give you the apple, how many apples do i have?