File Edit View History Bookmarks People Window Help Secure httpsal MasteringChemistry: Chapter 1 (Matter, Measurement, and Problem solving) Questions CH 121 e session.masteringchemistry.com/myct/itemview?offset next&assignmentProblemID 76420274 Winter 2017 Chapter 1 (Matter, Measurement, and Question 17 Question 17 previous l 1 Part A A cyclist rides at an average speed of 22 miles per hour. If she wants to bike 180 km how long (in hours) must she ride? Express your answer using two significant figures. O Ayob a Submit My Answers Give Up Provide Feedback C