The half-life of radium is 1690 years. If 50 grams are present now, how much will be present in 910 years? Round to the nearest thousandth as needed.

Asap the total attendance for all of a baseball league in 2012 was about 7.5×107 fans, while the attendance for the tornadoes in 2012 was about 1.5×106 fans. about how many times more was the attendance for the entire baseball league than the attendance for just the tornadoes? 50 times more 10 times more 2 times more 5 times more

Find the interior angle of a regular polygon which has 6 sides

What is the definition of a surd.give an example.