(3x)^2-2x^2 when x=-2

Your family has $745 for vacation. they spend 40℅ of the money on a hotel. they spend the remaining 1/3 on food. enter the amount of money your family will have left for activities

Which number completes the inequality? 2/3 < _ < 7/9

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?