Your sister is in a leadership class at school, and the class is doing a unit on community wellness. She needs to do a project that assists others in improving their personal health. Which of the following would be the best project for that assignment, and why?

The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g