With a speed of 55 mph, a driver drives through a tunnel in 1 minute. how long would it take him to get through the same tunnel with a speed of 45 mph?

Which statement justifies why angle ebc measures 90?

Bernice paid $162 in interest on a loan of $1800 borrowed at 6%. how long did it take her to pay the loan off?

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.