Correct Amswer Wins 50 Points: solve 236/9

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?

Which expression and diagram represent “renee biked four times as far this month as last month”?

2pointswhat is the best next step in the construction of the perpendicular bisector ofab?