There are 8 fluid ounces in 1 cup. You can solve this problem using these proportions:
It states that there are 8 fluid ounces in every 1 cup and 144 fluid ounces in every <em>x </em>cups. We have to solve for <em>x </em>using cross-multiplication:
Vickie can fill 18 1 cup candle molds with 144 fluid ounces of scented candle wax.