Im not sure how to do it because you don't have a plus or minus sign. add that and then i will show you.
<u><em>Answer:</em></u>
a = 3 ft
<u><em>Explanation:</em></u>
The relation between the legs and the hypotenuse of a right-angled triangle can be expressed using the Pythagorean theorem as follows:

<u>In the given triangle, we have:</u>
leg1 = 8 ft and hypotenuse =
ft
<u>Substitute with the givens in the above equation to get the length of the second leg as follows:</u>
(
)² = (8)² + (second leg)²
73 = 64 + (second leg)²
(second leg)² = 9
either second leg = 
or second leg =
as length cannot be negative
Hope this helps :)
We have to work on the two coordinates separately.
The x coordinate changed from -4 to -2, which means that the point gained 2 units on the x axis, which in turn means that the point was shifted 2 units to the right.
The y coordinate didn't change, which means that the point is not moving vertically.
So, the point was moved by a translation of 2 units to the right.
Yes, it's divisible by all of those. :)