What number is shown with the blocks? 2 tens 13 ones

I’m which figure is point g an orthocenter

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. determine an equation to model his situation?

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20