Answer:
I think the answer is 60 or 70 or 65
56
Step-by-step explanation:
7 heartbeats *8 minutes = 56
44% is the probability
6
3 sqrt(20) / sqrt(5)
We know that sqrt(a) /sqrt(b) = sqrt(a/b)
3 sqrt(20/5)
3 sqrt(4)
3 *2
