The table below shows the number of students in a school who like tacos and/or pizza:

like tacos do not like tacos total
like pizza 57 13 70
do not like pizza 12 15 27
total 69 28 97

what is the relative frequency, by row, of students who like both tacos and pizza?
0.18
0.46
0.81
0.83

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.