The inequality that describes the possible values of the expression is:

<h3>What is the lower bound of values of the expression?</h3>
The expression is given by:

To find the lower bound, we try to see when the expression is negative, hence:


Applying cross multiplication and simplifying the 3's, we have that:

From the bounds given, this expression will never be true, at most they can be equal, when:
a = b = 4.
Hence the lower bound of values of the expression is of 0.
<h3>What is the upper bound of values of the expression?</h3>
The expression is a subtraction, hence we want to maximize the first term and minimize the second.
Considering that the first term is direct proportional to b and inverse to a, and the second vice versa, we want to:
Then:

Hence the bounds are:

More can be learned about values of expressions at brainly.com/question/625174
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The answer is 900-246=654
Since 5 of the 8 students are boys, the fraction would be 5/8. The fraction would roughly be around 63%
Answer:

Step-by-step explanation:
The roots of the given polynomial are: 
Since,
are the roots of the polynomial, according to the factor theorem,
would be the factors of the polynomial.
Since we have the factors of the polynomial, we can multiply them to get the desired polynomial.
Let the polynomial be represented by P(x), so

The polynomial represented by P(x) has the given roots.