A stock has a beta of $1\mathrm{.}32$ and an expected return of $13$ percent. A risk$-$free asset currently earns $4\mathrm{.}4$ percent.

a$.$ What is the expected return on a portfolio that is equally invested in the two assets?

Note: Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$

b$.$ If a portfolio of the two assets has a beta of $.92,$ what are the portfolio weights?

Note: Do not round intermediate calculations and round your answers to $4$ decimal places, e$.$g$.,\mathrm{.}1616.$

c$.$ If a portfolio of the two assets has an expected return of $12\mathrm{.}2$ percent, what is its beta?

Note: Do not round intermediate calculations and round your answer to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$

d$.$ If a portfolio of the two assets has a beta of $2\mathrm{.}52,$ what are the portfolio weights?

Note: A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answers

to $4$ decimal places, e$.$g$.,1616.$

Answer is complete but not entirely correct. I need help with C