Sheila walked 7.7 km to the library. Using the table above, about how many miles did she walk?

Through non-collinear points there is exactly one plane.

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?