Finding 2 equivalent rates in the table is the same as finding which product has the same unitary price for distinct amounts.
To find the price of a single product, we just divide the total price by the total amount of products you're buying. For example, the price of a hat if you take 2 hats is given by
[tex]\frac{10}{2}=5[/tex]It is $5, however, if you buy 3 hats instead, you're going to pay
[tex]\frac{12}{3}=4[/tex]$4 instead.
If you calculate and do this comparison of prices for each product, you're going to find that only belts have the same price for different amounts.
[tex]\begin{gathered} \frac{9}{3}=\frac{15}{5}=3 \\ \frac{20}{2}=10\ne\frac{32}{4}=8 \\ \frac{15}{1}=15\ne\frac{25}{2}=12.5 \end{gathered}[/tex]The answer is belts.