so what is exactly the question
It's an expression that can be simplified to read
( 0.7 x 0.4 ) ( b³ x b⁹ )
= ( 0.28 ) ( b¹² ) = 0.28 b¹² .
Step-by-step explanation:

Answer:C would be the correct answer
Step-by-step explanation:
Doing this so I can ask sorry