<span><span /><span>In an observational study, During the discussion,
the author can indicates conclusion and explains the limitation of the study he
did.
This is where the author can give the scope and limitations of his study and
also to discuss what is the future use of his study. In introduction is where
he can write the reason why he studied his research, in methodology is where he
can write when , where and how he did his research and in result is where he
can state what problem his research answered or what’s the edge of his
research.</span></span>
ANSWER
w=23 inches and l=28 inches.
EXPLANATION
The given rectangle has perimeter,
The width of the rectangle is 9cm more than half the length.
Let the length be
inches.
The formula for perimeter is,
We substitute the values to get,
Expand:
The width is
15 - 9 + 2.65 + 1.35 + 3.48
6 + 2.65 + 1.35 + 3.48
8.65 + 1.35 + 3.48
10 + 3.48
13.48
Answer: 7 backpacks for $8 = $56
7 lots of paper and pens for $5 each = $35
56 + 35 = $91
The student Council savings decreased by $91
I believe it is b, you have to use the distributive property to get an equivalent expression.