THRZ - Target Heart Rate Zone
It is the level of intensity of cardio during cardio exercise and has different ranges. 60% to 70% ,low intensity this is a warm up for beginners. 70%-80% moderate intensity, it is in this zone that improves body's ability to transport oxygen throughout the body and conditioning one's heart.80% - 90% it in this zone also that allows us to burn more calories.
Answer:
7/4
Explanation:
To find slope you subtract the first y value from the second y value and divide that number by the first x value subtracted from the second x value.
The equation is: 
You can simplify this to: 
Your answer is 7/4 as a fraction and 1.75 as a decimal.
Hope this helps!
I think it is C, since it sounds the most reasonable.
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True..............,,,........
