Question

http://static.k12.com/bank_packages/files/media/mathml_d8c79c9c8eecdf3168f484cd4b893f9b730e11df_1.gif

Answer 1

A.
−13

B.
−5

C.
5

D.
13

Answer 2

@AriPotta

Answer 3

i think its A

Answer 4

agh it's either b or c

Answer 5

leaning towards b

Answer 6

but i think you have to flip the fraction since the bottom has a negative exponent so \[\frac{ 8^{4} }{ 8^{x} }=8^{9}\]
so, 4 - x = 9
-x = 5
x = -5

Answer 7

so its B

Answer 8

i'd go with b

Answer 9

thx

Answer 10

no problem :)