Rob's weekly salary is $481. His wife's Maria's weekly salary is $432. How much should they be able to afford to pay for a house? I didn't put the answers because I want someone to work it out step by step so I can work it out on the rest of them because people are just giving me random answers because I'm putting the answers on there .

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?