Which of the following is NOT a known way for a user or program to interact with Operating System. 

An investor bought a stock for $58, sold it 4 months later for $55, and received a dividend of $0.75. a.  Calculate the rate of return in %. [Do not type your answer in Canvas] [4 points] b.  Calculate the APR in %. [Do not type your answer in Canvas] [4 points] c.  Calculate the EAR in %. [Do not type your answer in Canvas] [4 points]

Which protocol is primarily used for sending emails?

Identify this connection ( #10) between the middle ear and the pharynx.

The returns for stock Z are: Year       Z        1      -0.02    2      -0.04    3      -0.06    4       0.08 a.  Calculate the risk of stock Z. [Do not type your answer in Canvas] [8 points] b.  Calculate the geometric average of stock Z.  [Do not type your answer in Canvas] [4 points]  

The network in the figure below is an example of ____________ topology. 

A channel that carries messages in both directions, but one direction at a time is called Simplex.

Which of the following is an example of a threat actor?

Identify the nerve in this ventral view of brain

Discuss one similarity and one difference between buying on margin and short selling.  [Do not type your answer in Canvas]