78.74 divided by 12.7

(98 points) i need with 5 questions. answer definitions are welcomed, but not necessary.

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?