We can reject the last one: subtracting a non-zero value will result in a smaller value.
So now we have:
<span>2(A + B)
(A + B)2
A2 + B2
If all of them are mulptiplications, then they are all equivalent!
I mean by this, if what you meant is this:
</span>
<span>2*(A + B)
(A + B)*2
A*2 + B*2
If there is no sign, then the multiplication sign is implicit,
and all of these expressions say exactly the same: two of A and two of B.
</span>
Answer:
X=132-13A/A, A cannot equal 0
A=132/X+13, X cannot equal -13
First you add 11+4 which equals 15 then you add 15+9 which equals 24. So Sandra sees 24 flags
48 inches = 4 feet, therefore 4:2, but simplified it is B. 2:1