Twenty-four pencils are in a package. The students use 3/8 of the pencils. How many did they use? Responses A 8 pencils8 pencils B 9 pencils9 pencils C 12 pencils12 pencils D 18 pencils

To find the number of pencils they used, we need to multiply the total number of pencils by the fraction used: 24 pencils * (3/8) = <<24*(3/8)=9>>9 pencils. Answer: \boxed{9 \text{ pencils}}.