4. (5/32), (5/128), (5/512)
5. 1572864
6. -.09375
7. 4920.75
8. -708588
9. -39366
10. .016
Answer:
HL
Step-by-step explanation:
The things that are congruent between the 2 triangles are the 90° angles and the hypotenuses and legs. HA and LA only work with the acute angles, not right angles, and AA isn't a way of proving things to be congruent, meaning that HL is the answer
All you would do is multiply .9 by 20
.9*20=18
90% of 20 is 18