Given the data below, what should be the class width to have 9 classes? 324 462 540 450 638 564
670 618 624 825 540 980
1650 1420 670 830 912 750
1260 450 975 670 1100 980
750 723 705 385 475 720

A. 30
B. 147
C. 148
D. 149

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.