Answer:
ITS C THE ANSWER IS C
Step-by-step explanation:
The equivalent expression to 7^13/7^7 would be 7^6.
<h3>What are equivalent expressions?</h3>
Those expressions that might look different but their simplified forms are the same expressions are called equivalent expressions.
To derive equivalent expressions of some expression, we can either make it look more complex or simple. Usually, we simplify it.
We have given an expression as 7^13/7^7
The equivalent expression;

Hence, The equivalent expression to 7^13/7^7 would be 7^6.
Learn more about expression;
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So,
First, the conversion between pounds and ounces is:
1 lb. = 16 oz.
So:
18 lbs. = 16 * 18 = 288 oz.
320 times .19t
t being the number of years