What is the sum of 80 minutes and 40 minutes? 40 minutes 1 hour, 50 minutes 2 hours 2 hours, 10 minutes

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

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?

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4