Who can help me with question 16 please if u can help me with 15 and 14 aswell thank you if not it’s ok

The product of two negative rational numbers is always zero sometimes zero never zero

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

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?