A year lasts 31,000,000 seconds. Which expression is in scientific notation and gives the number of seconds in a thousand years? 31,000,000 × 10 3 3.1 × 10 7 × 10 3 = 3.1 × 10 4 3.1 × 10 7 × 10 3 = 3.1 × 10 10 31 million × 10 3

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 the value of x? enter your answer in the box.

Darragh has a golden eagle coin in his collection with a mass of 13.551\,\text{g}13.551g. an uncirculated golden eagle coin has a mass of 13.714\,\text{g}13.714g.