Ajar contains 12 blue pens, 7 black pens, and 3 red pens. marco picks two red pens at random, without replacement. which product represents the probability that both of marco’s choices will be red pens? a) 3/22 x 2/22 b) 3/22 x 2/21 c) 3/22 x 3/21 d) 3/22 x 3/22

Line u passes through points (-52, -18) and (-29, 53). line v passes through points (90, 33) and (19, 56). are line u and line v parallel or perpendicular?

Paul can type 60 words per minute and jennifer can type 80 words per minutes.how does paul's typing speed compare to jennifer's

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.