Thank you for the opportunity to help you with your question!

28. 1.3 < h

h = 1.3

h < 1.5

h = 1.5

32. 1200 < m

m = 1200

m < 1300

m= 1300

36. I 3x- 1I + 10 = 25

I 3x- 1I = 15

now 1st case : 3x- 1 = 15 => 3x = 16 => x=16/3

2nd case -3x + 1 = 15 => -3x = 14 => x= - 14/3

40. 2 I 3x- 7I = 10x -8

I 3x- 7I = 5x- 4

1st case: 3x- 7 = 5x- 4 => 2x = -3 => x= -1.5

2nd case : 7- 3x = 5x- 4 => 8x = 11 => x= 11/8

Please let me know if you need any clarification for the doubts. I'm always happy to answer your questions. Looking forward to help you again. thank you. :)

Sep 25th, 2015

for the rest of the questions please let me know whether you need the graph on white sheet or on excel format