Answer :

The unit rate is $0.46 per ounce because $5.99/13oz=$0.46/oz. 

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]