Answer:
???
Step-by-step explanation:
?????what's the question
The circumference of any circle is (pi) x (the diameter of the circle).
The problem gives you both numbers, so all you have to do is multiply them.
Circumference = (pi) x (diameter) = (3.14) x (21cm) = <em>65.94 cm .</em>
Answer:
5.7
Step-by-step explanation:
3x+4 = 21
3x = 17
x = 5.666667 = 5.7
from the given graph the point (2,120) shows that the heartbeat of and active bear is 120 in 2 minutes.