The chart below shows four friends' target heart rate zones. During their last spin class, each person averaged 170 beats per minute. Based on this information, who worked at the highest intensity level? (3 points)Name Target Heart Rate ZoneJanna 146bpm–188bpmShania 145bpm–188bpmPaige 140bpm–182bpmMimi 140bpm–185bpmJannaShaniaPaigeMimi

To determine who worked at the highest intensity level, we need to compare each person's average heart rate (170 bpm) to their individual target heart rate zones.

1. Janna's target heart rate zone is 146bpm–188bpm. 170 bpm falls within this range, so she is working within her target zone.

2. Shania's target heart rate zone is 145bpm–188bpm. 170 bpm also falls within this range, so she is also working within her target zone.

3. Paige's target heart rate zone is 140bpm–182bpm. 170 bpm falls within this range, so she is also working within her target zone.

4. Mimi's target heart rate zone is 140bpm–185bpm. 170 bpm falls within this range, so she is also working within her target zone.

To find out who worked at the highest intensity, we need to see who was closest to the upper limit of their target heart rate zone.

1. Janna's upper limit is 188 bpm, so she was 18 bpm away from her upper limit.
2. Shania's upper limit is also 188 bpm, so she was also 18 bpm away from her upper limit.
3. Paige's upper limit is 182 bpm, so she was 12 bpm away from her upper limit.
4. Mimi's upper limit is 185 bpm, so she was 15 bpm away from her upper limit.

Based on this information, Paige worked at the highest intensity level because she was the closest to her upper limit.