Answer
See answers below
Work Step by Step
We have: $3c+2g=8$
For the first gap-width: $3c+2(\frac{5}{8})=8$
$3c+\frac{5}{4}=8$
$c=\frac{9}{4}$
For the second gap-width: $3(2\frac{1}{3})+2g=8$
$7+2g=8$
$g=\frac{1}{2}$
For the third gap-width: $3c+2(\frac{3}{8})=8$
$3c+\frac{3}{4}=8$
$g=\frac{29}{12}$
For the fourth gap-width: $3(2\frac{1}{2})+2g=8$
$\frac{15}{2}+2g=8$
$g=\frac{1}{4}$