Use x=3.14 to estimate the circumference of the circle to the nearest hundredth
please help!

formula for circumference
C = πd or 2πr
r= 4 inch given
d= 2 x r
d= 2 x 4= 8 inch
now place the value of d in the formula, we have
C = π x d
c = 3.14 x 8= 25.12 inch