How do i solve this equation, i haven't been in school for a long time?

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

Type the correct answer in each box. spell all words correctly. a sequence of transformations maps ∆abc onto ∆a″b″c″. the type of transformation that maps ∆abc onto ∆a′b′c′ is a . when ∆a′b′c′ is reflected across the line x = -2 to form ∆a″b″c″, vertex of ∆a″b″c″ will have the same coordinates as b′.

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)