First round 6254 to 6000 then multiply it by 2.
6,254=6,000x2=12,000
If you need help on the multiplying bit here is how you do it:
First take the whole numbers so 6 and 2. Next multiply them. 6x2=12. Then all you do is add the zeros. So in this case there are three zeros so 12,000 is your estimated answer.
35 - 10 is 25 then 25 times 2 is 50 shawna had 50 comic book
The options seem a bit mis-formatted but here is the way p is computed:
the decrease is 2000-1600
and it is relative to: 2000 (2003 attendance)
so 
and so that aligns with your Option A. Options B, C, D look incorrect for sure.
A(-4,5)
B(-3,1)
C(-5,2)
A rotated(3,1)
B rotated(2,5)
C rotated(4,4)
The third side can be represented by D) 
Step-by-step explanation:
Step 1:
According to the Pythagorean theorem, the square of the hypotenuse will be equal to the sum of the squares of the other two sides.
In the given triangle, the hypotenuse is the side that is represented by z. Another side on the triangle is represented by the value y.
Step 2:
Assume the other side of the triangle measures x units.
So according to the Pythagorean theorem,

which is option D.