Solve for w: - 4/5 w + 2 = -2

help me lol .

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?

What is the product? a-3/15a × 5/a-3

Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?