Answer:
c = 21
Step-by-step explanation:
[tex]\frac{c+3}{8}[/tex] = [tex]\frac{1}{\frac{1}{3} }[/tex] ( cross- multiply )
[tex]\frac{1}{3}[/tex] (c + 3) = 8 ( multiply both sides by 3 to clear the fraction )
c + 3 = 24 ( subtract 3 from both sides )
c = 21