2 answers:
we are given to simplify

Open the bracket and write the like terms together

when the bases are same then the exponents gets added

(x^6y^5)(5xy^2)(-6x^4)
Remove parentheses and multiply.
-30x^6x^4xy^5y^2
Apply exponent rules.
-30x^11y^7
Your answer is 
I hope this helps ;)
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20%
source= 8/10 is 80% so you take the remaining 20% which is the percent of increase
Answer:
301.44
Step-by-step explanation:
V = h x π x r^2
V = 6 x 3.14 x 4^2
V = 301.44
hope this helped!
Out of 960 calculators, 8 were found be to defective
Probability:

0.00833...
As a Percent:
0.00833....× 100
0.833%
To the nearest tenth of percentage:
0.833% ≈ 0.8%
36/39 or 12/13 is th answer to that