Answer:
a) Interpretation of the expression
b)
Step-by-step explanation:
We are given the following in the question:
Unit cost of goby fish = $15
Unit cost of shrimp = $10
There are equal number of goby fish and shrimp in a bag.
A) The cost per bag with the expression
![x(15+10)](https://tex.z-dn.net/?f=x%2815%2B10%29)
Interpretation:
The above expression represents the total cost of bag contain x number of goby fish and x number of shrimp where 15$ and 10$ are the unit cost of goby fish and shrimp respectively.
B) Expression for total cost
![C(x) = 25x](https://tex.z-dn.net/?f=C%28x%29%20%3D%2025x)
where C(x) is the total cost and x is the number of goby fish or the number of shrimps that are equal.