Stacy rowed across the lake with her friend rainey (in the same boat) at a rate of 3 mph. rainey then rowed back at a rate of 2 mph. if the lake is 6 miles across, how long did it take them to complete their trip?

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.