Get reliable answers to your questions at Westonci.ca, where our knowledgeable community is always ready to help. Get quick and reliable answers to your questions from a dedicated community of professionals on our platform. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

To achieve the maximum benefit for the heart when​ exercising, the heart rate​ (in beats per​ minute) should be in the target heart rate zone. The lower limit of this zone is found by taking​ 70% of the difference between 220 and the age of the person. The upper limit is found by using​ 85% of the difference. Complete parts a through d.