What’s the definition of civilization

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?

Predict which statements are true about the intervals of the continuous function. check all that apply

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?