The temperature at a mountain base camp was −5 degrees Celsius on Wednesday. Thursday morning, the temperature was 2 degrees Celsius lower than it was on Wednesday. By Thursday evening, the temperature was 1 degree Celsius lower than it was that morning. What was the temperature at the base camp Thursday evening? −9 degrees Celsius

−8 degrees Celsius

−7 degrees Celsius

−6 degrees Celsius

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?