Answer:103680÷24=4320 per hour
4320÷60=72 beats per minute
Step-by-step explanation:
1 day = 24 hrs
24 hrs = 1440min
1440 min = 103680 b
1 min = x
☓ = 103680 ÷ 1440
x = 72 b
Answer:
x5
B