Answer:
[tex]18vw^6[/tex]
Step-by-step explanation:
We can set the following equation:
[tex]\frac{1}{3}5vw^3B=30v^2w^9[/tex]
Getting rid of the fraction, we can multiply both sides by 3.
[tex]5vw^3B=90v^2w^9[/tex]
Dividing by 5, we have
[tex]vw^3B=18v^2w^9[/tex]
Dividing by vw^3, we have
[tex]B=18vw^6[/tex]
