We determine which expressions have a value close to 12 as follows:
[tex]\frac{1}{5}\cdot60.14=12.028[/tex][tex]\frac{2}{7}\cdot42.85=12.24285714[/tex][tex]\frac{3}{8}\cdot31.54=11.8275[/tex][tex]\frac{4}{7}\cdot14\cdot82=8.468571429[/tex][tex]\frac{5}{8}\cdot9.08=9.2625[/tex]
So, the expressions with values close to 12 are a, b & c.
