For all real numbers a and b, 2a • b = a2 + b2.
true or false ? explain.

All per-unit concepts rely on ratios,meaning,to provide a type of measurement

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

Can someone, me with this.i really need with this