Dave and Rachel are selling plain and holiday wrapping paper for a school fundraiser. Dave sold 1 roll of plain wrapping paper and 10 rolls of holiday wrapping paper for a total of $105. Rachel sold 10 rolls of plain
wrapping paper and 11 rolls of holiday wrapping paper for a total of $160. Find the cost each of one roll of
plain wrapping paper and one roll of holiday wrapping paper.

Me with this assignment ! i only partially understand, so explain. also it's a work sample. at the championship bike race, steve and paula were fighting for first place. steve was 175 feet ahead of paula and had only 300 feet left to go. he was very tired and was going only 9 feet per second. paula was desperate to catch up and was going 15 feet per second. who won the bike race and by how far did she/he win?