Atelevision normally costs $1,420. due to a store sale, the television is now $1,022.40. what was the percentage taken off the television? ( show me the work, )

Which lines are parallel? justify your answer. lines p and q are parallel because same side interior angles are congruent. lines p and q are parallel because alternate exterior angles are congruent lines l and m are parallel because same side interior angles are supplementary lines l and m are parallel because alternate interior angles are supplementary.