Help me, please? I dont understand these

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

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′.

How can (square root of 25) ^2 be rewritten?