Answer:
A.
Step-by-step explanation:

Divide both the numerator and denominator by 9 to get;

Convert the improper fraction to a mixed number;
In order to answer the question, we simply substitute the value of p and q to the given expression and solve. We do as follows:
<span>P^2q^2+pq–q^3–p^3
</span>0.5^2(-0.5)^2+0.5(-0.5)–(-0.5)^3–(0.5)^3
-3/16 or -0.1875
Hope this answers the question. Have a nice day.
x = Nick's age y = Sara's age
Nick is 8 years older than Sara, therefore
y = x - 8