Three more than a certain number is 6 less than 4 times the same number. Which number matches this description?

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?

Plz hurry evaluate the expression a+b where a=8 and b=19

What is the inverse of the function f(x) = 2x + 1?