I really need help please

Ineed solving this problem h/8=-25 solve for h idk how to this can someone show me and also give an answer you

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

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.