I think it's A.
The difference = x - 5, where x is Jamie's height.

As, 

=0.301029+0.845098+1.13943
=2.26007
=2.260(approximate)
Answer:
Im not exactly sure but i think it's 1/4 or 1/5.
Step-by-step explanation:
This was based on my work I did.
Answer:
42.4
Step-by-step explanation:
1) use this formula of Area of the triangle:

2) using the formula described above:
A=0.5*14*11*0.55≈42.4 (mm²)
They are already both positive numbers, so the absolute value of 2 is 2, and the absolute value of 1/3 is 1/3.