A column in a building is subjected to the following load effects:

9 kips compression from dead load.
5 kips compression from roof live load.
6 kips compression from snow.
7 kips compression from.
3 inches of rain accumulated on the roof.
8 kips compression from wind

a. If load and resistance factor design is used, determine the factored load (required strength) to be used in the design of the column. Which AISC load combination controls?
b. What is the required design strength of the column?
c. What is the required nominal strength of the column for a resistance factor phi of 0.90?
d. If allowable strength design is used, determine the required load capacity (required strength) to be used in the design of the column. Which AISC load combination controls?
e. What is the required nominal strength of the column for a safety factor Ohm of 1.67?