Which description is represented by a discrete graph

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

Can someone pls ! pls answer all. no explanation needed..

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -