The sum of three numbers is 66 . the third number is 2 times the second. the first number is 6 more than the second. what are the numbers?

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

Asandwich shop has 18 tables. each table seats up to 4 people. to find the greatest number of people that can be seated, you can solve p4 ≤ 18. which step is the best way to solve the inequality? plz asap i repeat plz