Box contains 547698 marbles what is the number rounded to the nearest thousand

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

In right triangle xyz, the right angle is located at vertex y. the length of line segment xy is 12.4 cm. the length of line segment yz is 15.1 cm. which is the approximate measure of angle yzx? 34.8° 39.4° 50.6° 55.2°

Heather, sarah, nicky, and jill each have nine markers. how many markers do they have in all?