Some advances of the Empire include the mathematical system of algebra, the invention of the toothbrush, the musical instrument guitar, magnifying glasses used in optics, they were the first to brew coffee, first to create the concept of a hospital and surgical practices that lead to treating ailments of the ear and esophagus.
You can write up a petition or raise money for the school. If you raise enough money then it can put the P.E class back on track. Without Physical Education your classmates will gain weight and not know how to eat and live healthily.
Explanation:
60 - 70% of maximum heart rate: This zone provides the same benefits as the healthy heart zone, but is more intense and burns more total calories. The percent of fat calories is remains up to 85% in this zone.