Jabal and micheal are walking to school and agree to leave their homes at the same time. jabal leaves his house walking 2 meters per second. micheal leaves his house walking 2.5 meters per second. jabal's house is 100 meters closer to school than micheal's house. after how long are the boys walking together?

Can someone check if i did this correct. it’s number 4 if you’re wondering.

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?