A factory manufactures ball-pens and all products are sold at Tk. 10 per piece. If for manufacturing x pieces of ball-pens total cost,   2 c x x x    30 2 0.02 . A. (a) How many pieces to be produced for maximum income? (b) What will be the maximum income?

Will give brainliest for correct answer 8. use the distance time graph to answer these questions: a. what does the graph tell us about the velocity of the car? b. what is the average velocity of the car? (show work) c. is the velocity reflected in the graph positive or negative?d. is there any point on the graph where the car is not moving? how do we know?