Answer:
The correct expression for the perimeter is 
see the explanation
Step-by-step explanation:
The complete question in the attached figure
Let
L ----> the length of rectangle
W ---> the width of rectangle
we know that
The perimeter of rectangle is equal to
In this problem we have
substitute the values
Simplify
so
Michelle didn't multiply the sum of length and width by 2
895/2=447.5
447.5-177=270.5
447.5+177=654.5
diamond has 270.5
and
jenny has 654.5
Plug in x and y into the equations and see which one comes out true...
Also, K12 person huh?
2(books)*$3.50=$7.00
4(books)*$5.25=$21.00
Total bill=$34.00
$34.00-($7.00+$21.00)=$6.00
The 3 books was sold for $6.00 but its original selling price is $6.00*2 which is $12.00 reason being the books was sold for half the original price.
