Which of the following conditions in a quadrilateral proves it is a parallelogram? a. one pair of opposite sides are congruent. b. one angle is supplementary to both consecutive angles. c. one pair of opposite angles are congruent. d. the diagonals are congruent.

1. if we have 3 babies what is the probability they’re going to be all boys? 2. if we roll 2 die at the same time what is the probability of getting less than 10 on the first roll and a 5 on the second roll 3. if we have 3 babies what is the probability their is going to be 2 girls? 4. if we have 3 babies what is the probability of having no more than 1 girl? 5. it we have 3 babies and then have another 3 babies what is the probability of us having at least 1 boy and then having all girls?