Answer:
D. Infinitely many solutions
Step-by-step explanation:
The equation simplifies to ...
2h -16 -h = h -16
h -16 = h -16 . . . . . . a "tautology", true for all values of h.
There are infinitely many solutions.
We can start out simple, so here's some:
If you ever drew a sea saw as a child, or seen it, you probably had seen a part that looks like a triangular prism. It's somewhere in the structure.
Many building infrastructures have them. The roofs of many houses are pointed in some what of a triangle like shape so that rain water can roll off of them easier.
Hope these two help or at least spark some ideas!
Answer:

Step-by-step explanation:

Rule of exponents
, 
=> 
=> 
Combining same bases
=> 
When bases are same , powers are to be added
=> 
=> 
=> 
=> 
=> 9