what are the correct answers?

1. If you are 13 years old, which math problem would give you your maximum heart rate?

2. If you are 13 years old, what is your maximum heart rate?

3. After finding your maximum heart rate, remember your target heart rate zone is 70-85% of you maximum heart rate.

4. What would be the lower range or your target heart zone?

5. What would be the upper limit?

A. 193

B. 176

C. 145

D. 200 - 13

E. 100

F. 200 + 13

G. 220 + 13

1. B. 176 (220 - age)

2. B. 176
3. C. 145
4. E. 100
5. B. 176

I think their all wrong

I apologize for the confusion. Let me correct the answers:

1. A. 193 (220 - age)
2. A. 193
3. B. 162.1 (85% of 193)
4. C. 135.1 (70% of 193)
5. B. 176

Thank you for pointing that out.