5. `g` is the same as `g`^{1}.

8. -4/9 is a constant since there is no variable.

14. -`w`^{12} is the same as -1`w`^{12}.

28. Combine like terms.

33. When subtracting the negative terms, it will be the same as adding positive terms.

47. A polynomial is the sum of one or more monomials.

49. A binomial is a polynomial with two terms.

55. Combine like terms.

61. Multiply 8`x` – 10 by 4`x` to get the total area, and then find the area of the pool and hot tub and subtract these.

63. Distribute the 8 to both of the terms in the parentheses, and the same for the 2.