Question 1/ 4 Greg practiced playing his clarinet for 12 minutes. He has practiced 40% of the amount of time he needs to practice today. How many more
minutes does Greg need to practice today?
A. 13 minutes
B. 18 minutes
C. 22 minutes
D. 27 minutes

step-by-step explanation:

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the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm