It would seem that the 25% down and 25% increase would cancel each other out and the shoes would remain $60
I guess you are asking what is the shape of the cross section.
It will be an ellipse.
<u>To factorize something</u>:
⇒ need to simplify the equation to its most basic form
<u>Let's solve</u>:

Thus the factorized form is ⇒ 
<u>Answer: 2x(x+3)</u>
<u></u>
Hope that helps!
17 . Find the values of g(9) and h(-14) and add them together.
The function equations are given to find their values substitute 9 in g(x) and -14 in h(x)
20. They said f(x) = 2x + 9 and f(x) = 15 , which means they are equal to each other.
So write them as 2x + 9 = 15 , and solve the equation to find the value of x.
25. Here all you have to do is substitute 4 into the f(x) equation to find f(4)and you will have your answer.
Hope this helped!