Answer: betonit

AnswerCrossword Clue
BETONIT

"High School Musical 2" song

BETONIT

"Don't ..." (no sure thing)

BETONIT

"You can be sure"

BETONIT
"High School Musical 2" song with the lyric "Am I the type of guy who means what I say?"
BETONIT
Back something with a wager