Pls help it is due today

Choose the correct slope of the line that passes through the points (1, -3) and (3, -5)

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?

What is r i 4.5+10r=-6.5 with work pls