Answer:
999
Step-by-step explanation:
this is the answer but I don't sure.
Answer: D. 
Step-by-step explanation:
Using exponent rules an exponent to the power of a number will multiply by each other.
So the -4 and -9 will multiply.
The 6 in the numerator will now have a positive exponent of 36.

Now we can divide and when we do so the exponents will subtract from each other.
So 36 - 6 = 30
And the base of 6 does not change.
The simplified form is 
You don't have the answer choices but if there were no decomposers within an ecosystem, some plants could die due to a shortage of nutrients
.
Nobody can solve this without any further information?
The answer would be C.(-2,-3); Minimum.
You can tell be cause the points are going down<span />