An integer added to -15 equals 11. what is the integer

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?

In a column proof the right column states your reasons

Find the missing dimension! need asap! tiny square is a =3025 in ²