Mrs. Blushing makes shirts at a tailor shop. She sews 5 buttons on each shirt. She uses 10 buttons on the first day, 30 buttons on the second day, and 15 buttons on the third day. Which statement is true about the buttons Mrs. Blushing uses?

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?