The line plot shows the costs of 5 books. A teacher buys all 5 books. She pays with a $100 bill. How much change should she get

Answer this question only if you know the answer! 30 points and

Select the lengths in centimeters that would form a right triangle

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.