Step-by-step explanation:

Answer:
A) 
Step-by-step explanation:
An equation is a function of
when
is the independent variable, that is:
(1)
Where
is the dependent variable.
According to this,
does not represent a function of
, since the independent variable is a function of
, that is,
. Therefore, the correct answer is A.
If u wrote 9 to the power of - 2 and x to the power of - 1 and y to the power of 0 and write the x at then end it would end up a fraction of 1/81 but I'm not sure what u want like multiply?
20 hot dogs was eaten by the 10 people who attended the hot dog eating contest.
<h3>What is an equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Let us assume that there were 10 people at the hot dog eating contest. If each person eats 2 hot dog, hence:
Number of hot dogs eaten = 2 hot dog per person * 10 people = 20 hot dogs.
20 hot dogs was eaten by the 10 people who attended the hot dog eating contest.
Find out more on equation at: brainly.com/question/2972832
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