<h2>
Greetings!</h2>
Answer:
$12.60
Step-by-step explanation:
To find this, you need to remember this equation:
Starting amount x 
Plug these values in:
18 x
= 12.6
So the clearance price was $12.60!
<h2>Hope this helps!</h2>
Answer: 
Step-by-step explanation:
Given the following expression:

You need to substitute the given values of "a" and "b" into the expression. Notice that these values are:

Then;

Now you must solve the multiplications:

The final step is to add the numbers. Therefore, you get the following answer:

you work out the equation from 5 to 3 then compare it to 9
Answer:
Step-by-step explanation:
The difference of two squares:
a²-b² = (a - b) ( a + b)
a²-b² = a² + ab -ab +b²