Answer:
D is the correct answer
Step-by-step explanation:
Not all rectangles are squares.
Answer: C: 12-7x
Step-by-step explanation:
This expression is a good example of the difference of two squares, as 144 is the square of 12, while 49x² is the square of 7x.
Any difference of two squares
can be factored into the sum of their square roots times the difference of their square roots
.
Let's factor our expression.

Out of all the options given, only
is a factor. Hence, option C is correct.
Answer:
27/125
Step-by-step explanation:
multiply it 3 times
66+52+x=180
118+x=180
x=180-118
x=62
Hope this helps :)