Answer:
The word problem is "How many $25 are there in $125?"
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Step-by-step explanation:
Given

Required
Write a word problem for the expression
We start by solving the given equation

Divide both sides by $25



This implies that there are 5, $25 in $125
<em>Hence; The word problem is "How many $25 are there in $125?"</em>
1/3--------------------------
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

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

where C(x) is the total cost and x is the number of goby fish or the number of shrimps that are equal.
<span>(3x^2+6x−6)(5x^2−3)
=15x^4 - 9x^2 + 30x^3 - 18x - 30x^2 + 18
</span>=15x^4 + 30x^3 - 39x^2 - 18x + 18