Given a rectangle with a length of 28 and a width of 7, which rectangle is similar? a) rectangle with a length of 30 and a width of 6 b) rectangle with a length of 48 and a width of 4 c) rectangle with a length of 60 and a width of 15 d) rectangle with a length of 72 and a width of 12

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?