Write (27a^-9)^2/3 in simplest form

2 to the second power times a to the negative four power 

four times a to the negative four power

2(2)*a(-4)

4a(-4)

Or if you can't use negatives

4

a(4)

Four overtop a to the fourth power 

Aand b are correctly balanced reactions. they have the same number of atoms in both sides of the reaction

$22. if larry's profit were to minimize by one for every hour his store were to be closed, we would subtract 30 by 8.