HELP PLEAAASE

Me write an equation for the interior angles of this triangle that uses the triangle sum theorem

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

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes