Lisa is choosing between two exercise routines. in routine #1, she does only running, burning 8.5 calories per minute. in routine #2, she burns 28 calories walking. she then runs at a rate that burns 2.9 calories per minute. for what amounts of time spent running will routine #1 burn at least as many calories as routine #2? use t for the number of minutes spent running, and solve your inequaliy for t