Priya starts with $50 in her bank account. she then deposit $20 each week for 12 weeks write the coordinate pair format:(x, y) that represent the amount in after 3 weeks

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?