<u>Ans</u><u>wer</u>
a)
b)
c)
<u>Explanation</u>
a) The given expresion is
We rewrite as difference of two squares
Recall that:
This implies that:
Or
This simplifies to give:
b) The second expression is
We rewrite as perfect squares yo get:
This gives:
This implies that
We simplify to get:
c) The third expression is:
We obtain the difference of two squares as:
We simplify within the parenthesis to get:
We simplify further to get;
Normal price 2 packs - $3.78
Markdown price 2 packs - $3.40
Saves - $0.38 or 11.1%
Hope this helps!
1) local shopping mall
This is most relevant to spending habits. This would be where people would be spending money on a lot of different things and where their spending habits would show. It'd make the most sense to survey people there.
Answer:
$115
Step-by-step explanation:
Although it did say to complete the equation I put the answer just in case.
So, in order to calculate the total weekly income, I will use x which will equal the number of hours. The equation needed to calculate the weekly total income will be:
w = 6x + 25
Because we know the number of hours is 15, we can plug 15 in x:
w = 6(15) + 25
w=90+25
w=115
So, the total weekly income will be $115(don't forget to put the unit! In this case it will be the dollar sign).