Please help!! i don’t understand and it’s timed

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Is the square root of 4 plus the square root of 16 rational?

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′.