I need help with this ASAP plz

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

What is not true about kl and mn? what is mn? (show your work)

Which table shows a proportional relationship between miles traveled and gas used?