Sejong, Inc, is an all-equity firm.

The variance of KOSPI returns (m2) is 0.3,

and the variance of Sejong returns (i2) is 0.9,

and the covariance between them (im) is 0.6.

The risk premium of Korean market is 10% per one unit of risk,

and the riskless rate (rf) is 5%.

Then, the expected return of Sejong, Inc. is ( ).

If I, however, put all my fund in Sejong alone (concentrated investment),

then my expected return is ( ),

and market's expected return is ( ).

Can you tell me why? (about 50 words)