Shelly biked 21 miles in 4 hours what is shelly's average speed in miles per hour at the same rate how many hours will it take shelly to bike 42 miles

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol

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?

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?