Answer :
we know that
A rate is a ratio that compares quantities in different units. A unit rate is a rate where the second quantity is one unit
so
In this problem to find the unit rate
Divide $[tex] 5.99 [/tex] by [tex] 13\ ounces [/tex]
[tex] unit\ rate=\frac{5.99}{13}\frac{dollars}{ounce} \\ \\ unit\ rate=0.46\frac{dollars}{ounce} [/tex]
therefore
the answer is
the unit rate is equal to [tex] 0.46\frac{dollars}{ounce} [/tex]