got all these questions wrong, please help

QUESTION 7 5 points Save Answer Florida Company (FC) and Minnesota Company (MC) are both service companies. Their historical return for the past three years are: FC:-44%,9%,-49%; MC: 32%,43%,29%. what is the sample variance of the portfolio with 50% of the funds invested in FC and 50% in MC. (For these problems don't enter the 96 into your formula, eg treat 10%" as i10, not as "O.10". You can use the VAR function in Excel.) QUESTION 8 5 points Save Answer Florida Company (FC) and Minnesota Company (MC) are both service companies. Their historical return for the past three years are: FC:-21%,0%,-29%; MC:-2%,-12%,11%. Calculate the correlation coefficient between the return of FC and MC. Enter ouran wer out to the fourth decima e g 1" For these problems don't enter the % into your formula, e.g. treat "10%. as "10", not as .0.10. You can use the =CORREL function in Excel.) QUESTION 9 5 points Save Answer Florida Company (FC) and Minnesota Company (MC) are both service companies. Their historical return for the past three years are: FC: 17%,-28%,9% and MC:-46%,-26%,-12%. If FC and MC are combined in a portfolio with 50% of the funds invested in each, calculate the expected return on the portfolio. For these problems don't enter the % into your formula, eg treat "10%" as "10", not as"0.10. You may want to employ the-AVERAGE function in Excel.)