Mr. Hoagie's Sandwich Shop charges a 9% delivery fee on all orders. If your food costs $27.50, what should you expect your total bill to be if it includes the delivery fee?

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.