Answer:
2(x+3)+4(5+x)
2x+6+20+4x
6x +80
Explanation:
1.Distribute
2.Add x bc x can't add to normal #'s
3.Add normal #'s
4. Then you get : 6x+80 Bc you can't add these together
<span>Since I do not know your maximum heartrate ill give you the standard. For vigorous-intensity physical activity, a person's target heart rate should be 70 to 85% of his or her maximum heart rate.</span>
Female, I believe..I guess, males have more stronger lungs than females. So, yeah :]