Arunner completed a 26.2-mile marathon in  210 minutes. a. estimate the unit rate, in miles per minute. round your answer to the nearest hundredth of a mile. the unit rate is about mile per minute. b. estimate the unit rate, in minutes per mile. round your answer to the nearest tenth of a minute. the unit rate is about minutes per mile. question 2 c. another runner says, “i averaged 10-minute miles in the  marathon.” is this runner talking about the kind of rate  described in part (a) or in part (b)? explain your reasoning. the runner is talking about  the rate in because  “10-minute miles” is a way  of talking about the rate in  .