#### Answer

The 29oz can is much cheaper per oz than the 15oz can.

#### Work Step by Step

So to find which one has lower costs you need to find how much it costs per ounce so,
$\frac{0.89}{15oz}$ $\approx$ 0.5933 dollars per oz
$\frac{1.69}{29oz}$ $\approx$ 0.05827 dollars per oz