C
If you plug in the values in that equation, it works.
Answer:
Option C -> None of the above.
Step-by-step explanation:
Given-
2 r + ( t + r )
<em>⇒ 2 r + t + r</em>
<em>⇒ 2 r + r + t</em>
<em>⇒ 3 r + t</em>
∵ 2 r + ( t + r ) = 3 r + t.
∴ The given expression is equivalent to Option C : None of the above.
The question only supplied us with the mass of the new baby which is:

This mass is too bizzarre & unrealistic for
Answer: 
Step-by-step explanation:
x^2+y^2=r^2 --> subtract x^2 to other side
y^2=r^2-x^2 --> square root both sides
y=sqrt(r^2-x^2)