I’m struggling with this could you help me pls

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

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.

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)