Answer:
BD = 6
Step-by-step explanation:
Theorem: The altitude to the hypotenuse of a right triangle is the mean proportional between the segments of the hypotenuse.
So, 

BD = 6
See how easy that is IF you know the theorem.
Answer:
if, 1 + 3 - (8 * 334 * 123) = x
then, x = -328652
Answer:
25
Step-by-step explanation:
z+3z+25=125
4z=100
z=25
0.32. Because you need to find the area, as size 8*8/2 then divide by 100 to get the decimal.I hope this helps.