Acontestant on a quiz show gets 150 points for every correct answer and loses 250 points for each incorrect answer. after answering 20 questions, the contestant has 200 points. how many questions has the contestant answered correctly and incorrectly?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Yesterday, george drank 1 small bottle and 2 large bottles, for a total of 1,372 grams. the day before , he drank 1 small bottle and 1 large bottle, for the total of 858 grams. how many grams does each bottle hold?

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.