Number 1 is unanswerable from the information given.
Number 2)
The orientation of a figure is the angular position of where the figure is placed on a plane while the dilation just affects the stretch and shrink factor of the figure.
2 x - 125 = 400
2 x = 400 + 125
2 x = 525
x = 525 / 2
x = 262.5
Subtract the right side and you have
x² -10x -6 -2x -1 = 0
x² -12x -7 = 0
This corresponds to the selection ...
C. x² -12x - 7 = 0
We can start to solve this problem like how we solve any division problem. Since 8 doesn't go evenly into 4, we can move one digit to right, giving us the number 42. 42 divided by 8 is 5, so we write 5 on top of the division bar and keep working. Since 42-40 is 2, there's still 2 remained after doing that. Now we can bring down the 6, turning the number into 26. 26 divided by 8 is 3 remained 2, so we can put the three next to the 5. Since we have two remained and no more numbers, that means that the answer to 426/8 is 53 remainder 2.