Hello, Python

1. </ br></ br>    a. 6</ br>    b. 20.0</ br>    c. 4.5</ br>    d. -4.5</ br>    e. 4</ br>    f. 1</ br>    g. 1.0</ br>    h. 1.0</ br>    i. -1</ br>    j. -1</ br>    k. -4.5</ br>    l. 19</ br>    m. 35</ br>

2. The unary plus operator returns the value of its argument unchanged.

4.    a. (6 * 3), then (7 * 4), then (18 + 28).
   b. (3 /4), then (5 + 0.75).
   c. (3 ** 4), (2 * 81), then (5 - 162).

6.

  • (x - x) is evaluated, yielding 0.
  • 0 is added to the value at x, which is 3, yielding 3.
  • finally the result, 3, is assigned to variable x.

8. b, e.