Page 28 (40-54 all)
40. h
41. h
42. 11x + 4y 
43. 14m + 11g
44. h
45. 12k + 12k3
46. h
47. h
48. h
49. h
50. 4 (8p) + 4 (4q) + 4(-7r)
51. h
52. 6x2 + 5x
53. 7y3 + y4
54. h

Page 30 (1-10 all)
1. Subtract x to the power of 3 from 21
2. Multiply 3 by m to the power of five then add 9
3. 5+s2
4. 4(y4)
5. 29x + 0.32y
6. 2
7. 9
8. 48
9. -28
10. h