can someone please help me solve questions b) through c)

finding out the standard deviation for part b) and part C) asks "if their correlation is 0.46, what is the expected return and standard deviation of a portfolio of 68% stock A and 32% stock B"

Stocks A and B have the following returns: (Click on the following icon p in order to copy its contents into a spreadsheet.) a. What are the expected returns of the two stocks? b. What are the standard deviations of the returns of the two stocks? c. If their correlation is 0.46, what is the expected return and standard deviation of a portfolio of 68% stock A and 32% stock B? a. What are the expected returns of the two stocks? The expected return for stock A is (Round to three decimal places.) The expected return for stock B is (Round to three decimal places.) b. What are the standard deviations of the returns of the two stocks? The standard deviation of the return for stock A is (Round to four decimal places.)