You have a portfolio, which is composed of six securities$.$ The expected return of each security, the number of securities you owned, and the current market price of securities are shown below:

Security j Expected return Number of securities owned The current market price of security

$112\%450$ $$20\mathrm{.}00$

$220\%500$ $$25\mathrm{.}00$

$325\%900$ $$18\mathrm{.}00$

$422\%550$ $$15\mathrm{.}00$

$54\%-40$ $$500\mathrm{.}00$

$68\%200$ $$25\mathrm{.}00$

a$)$ Please calculate the market value of each security and the market value of the portfolio.

b$)$ Please calculate the weights of each security in the portfolio.

c$)$ Please calculate the expected return of the portfolio.