Show one way to count from $82 to $512

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle

Arace is 10 kilometers long. markers will be placed at the beginning and end of the race course and at each 500 meter mark. how many markers are needed to mark the course for the race?