22. Add `w` times `w`, `w` times 6, 9 times `w`, and 9 times 6.

32. The area of a triangle is its base times its height times ½.

37. Multiply each term in the second polynomial by `y`, and also multiply each by 3.

45. What will determine what the highest exponent will be?

50. Multiply two of the dimensions together, and then multiply by the third.

58. Flip the fraction, and square everything in it.