Answer:

Step-by-step explanation:
Isolate the variable by dividing each side by factors that dont't contain the variable.



-8 -8

Divide both sides by 5.

-1 cus its -1 becus u -1 so u get -1
Hopes this helps:
Answer: B. x^8y^8
Have a great day.
1/3x4x4x8xpi=128/3pi
Second option is the answer.
Answer: 
Step-by-step explanation:
Any negative exponent can be moved to the other side of the fraction as a positive exponent.
Thus, simply move the negative exponents to get: 5a^2/b*b^8*-10a^4. Then, use the exponent rule to get 5a^2/-10a^4b^9
Hope it helps <3