Me with this questions plz. i really need 1. tell whether the following is or is not a polygon and justify your answer.

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?

In the figure below, m∠r is 60°, and m∠t is 120°. what is m∠q? a. 60° b. 30° c. 120° d. 54

What is the equation of a line, in general form, that passes through point (1, -2) and has a slope of 1/3 3x - y - 7 = 0 x - 3y + 7 = 0 x - 3y - 7 = 0