What is the least number to be added to 1500 to make it a perfect square?

He concluded that a heavier object dropped from the same height as a lighter object will land

How do you solving the solution of each system using elimination?

Abag contains 10 white golf balls and 6 striped golf balls. a golfer wants to add 112 golf balls to the bag. he wants the ratio of white to striped gold balls to remain the same. how many of each should he add?