Line a is parallel to line b. If the measure of angle 2 is 78 degrees, what is the measure of angle 5?

How do you use the elimination method for this question? explain, because i really want to understand!

An appliance store sells lamps at $95.00 for two. a department store sells similar lamps at 5 for $250.00. which store sells at a better rate

Find the area of the regular hexagon if a side is 20 cm.