Final answer:
To find how far a star is in miles from Earth, you multiply the distance of the star in light-years with the number of miles in one light-year, resulting in a distance of 1.711 x 10^15 miles.
Step-by-step explanation:
The question asks to calculate the distance from Earth to a star in miles, given the distance in light-years and the length of a light-year in miles. To find the distance, you need to multiply the number of light-years by the number of miles in one light-year.
Given that the star is 2.9x102 light-years away and one light-year is 5.9 x 1012 miles, the distance can be calculated as:
Distance in miles = 2.9x102 × 5.9 x 1012
Distance in miles = 1.711 x 1015 miles.