Which quadrilateral must have diagonals that are congruent and perpendicular?
1) rhombus
2) square
3) trapezoid
4) parallelogram

What term makes it inconsistent y=2x - 4 ?

Describe how making an ‘and’ compound sentence effects your solution set

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?