Find the surface area for both​

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made

Pranza plotted point a in the coordinate plane below.