What is another name for simple average?

Describe all the numbers that when rounded to the nearest thousand are 645,000

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 are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points