Which is the best estimate of the mass of a basketball? a. 6 grams b. 600 grams c. 6,000 grams or d. 60 kilograms?

And explain how you got it so i can understand future problems : 3

How do i do this activity, is appreciated

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?