How do you solve function notation questions?

Find the missing factor in exponential form 48^2=3^2 • ?

How many lines can be drawn through points j and k? 0 1 2 3

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?