14. 264 and 504 13. 275 and 132 16. 765, 780, and 990 prime. 45,68, 102, and 425 atively to find the greatest common factor of each group of numbers 17. 150 and 260 atively prime. use the method of dividing by prime factors 18. 237 and 395 20. 330 and 255 22. 585, 1680, and 990 est common mon multiple 19600 and 90 the greatestuse the euclidean algorithm to find the greatest common iven natural23. 18 and 60 21. 84, 90, and 210 factor of each group of numbers. 24. 77 and 84 26. 72 and 90 28. 200 and 350 25. 36 and 90 27. 945 and 450 use the prime factors method to find the least common multiple of each group of numbers ne common nt primes is relatively 29, 48 and 60 30. 21 and 35 their great- 31 81 and 45 32. 84 and 98 qual to the st common33, 20,30, and 50 34. 15,21, and 45

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?

Consider the following geometry problems in 3-space enter t or f depending on whether the statement is true or false. (you must enter t or f -- true and false will not work.) f equation editorequation editor 1. a plane and a line either intersect or are parallel t equation editorequation editor 2. two planes parallel to a third plane are parallel f equation editorequation editor 3. two lines either intersect or are parallel f equation editorequation editor 4. two planes orthogonal to a third plane are parallel f equation editorequation editor 5. two planes orthogonal to a line are parallel f equation editorequation editor 6. two planes either intersect or are parallel f equation editorequation editor 7. two lines orthogonal to a third line are parallel t equation editorequation editor 8. two lines parallel to a third line are parallel t equation editorequation editor 9. two planes parallel to a line are parallel f equation editorequation editor 10. two lines parallel to a plane are parallel f equation editorequation editor 11. two lines orthogonal to a plane are parallel

Bc and bd are opposite rays. all of the following are true except a)a,b,c,d are collinear b)a,b,c,d are coplanar c)bc=bd d)b is between c and d