Answer:
I don't know about you, but I would say the dog because it is the only relative object about the size and volume of the dog.
You can really do these yourself; there's no math here, just common sense. A bicycle weights a lot more than a tomato, a pineapple or a pencil, so we go with the dog and answer
Answer: about 10 kilograms
we are given
x^2-4x-5
we can use formula
x^2-(a+b)x+ab=(x-a)(x-b)
so, we have
a+b=4
ab=-5
now, we can solve for a and b
and we get
a=5, b=-1
now, we can plug it in formula
x^2-4x-5=(x-5)(x+1) ............Answer
