Alexa bought envelopes of flower seeds that each cost the sam. she spent atotal of $36. find three possible costs per envelope and the number of envelopes that she could have purchased.

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.