Answer:
23. 8n - 9
24. 55 - 45n
25. 69a - 10
26. -30m + 33
27. -4 + 96x
28. -8n + 26
29. -25b - 20
30. -71n - 9
Step-by-step explanation:
23. -2n - 9 + 10n
Collect like terms
= 8n - 9
24. 10 - 45n + 45
= 55 - 45n
25. 9a + 60a - 10
= 69a - 10
26. -54m + 27 + 6 + 24m
= -30m + 33
27. -10 + 90x + 6x - 60
= -4 + 96x
28. -10n + 20 + 2n + 6
= -8n + 26
29. -30b - 30 + 5b + 10
= -25b - 20
30. -7n - 21 - 8 - 64n
= -71n - 9
-15/16
3/2 x (-5/8) = 12/8 x -5/8 = -60/64 = - 15/16
Answer:90%
boiling and melting
