Round 991,965 to the nearest hundred thousand

How to use order of operation in 20 divide by 4 multiply 5 = 1

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

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?