Alan ran twice as many miles on Tuesday as he did on Monday and five more miles on Wednesday than he did on Monday. Write and evaluate an expression to find the total number of miles he ran if he ran 5 miles on Monday

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?