Someone please help me with this

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 each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?

Given: ab ≅ bc and ao ≅ oc ok − angle bisector of ∠boc find: m∠aok