## Algebra 1

A: To answer this part of the problem, we must multiply each number of light years times the number of miles each lightyear signifies, as such: Proxima Centauri - $4.2\times5,878,000,000,000= 24,687,600,000,000$ Sirius - $8.7\times5,878,000,000,000= 51,138,600,000,000$ Vega - $27\times5,878,000,000,000= 164,584,000,000,000$ Polaris - $431\times5,878,000,000,000= 2,533,418,000,000,000$