60 centimeters make a border around a rectangular. the width is 20 centimeters. what is the lenght?

The parking lot of a store has the shape shown. all angles are right angles. what is the area of the parking lot?

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.

What are the solutions of the equation x4 – 5x2 – 14 = 0? use factoring to solve. someone !