So im just feeling lazy to read but solve with steps please

Use the following information to calculate the expected return and standard deviation of a portfolio that is 70 percent invested in 3 Doors, Inc., and 30 percent invested in Down 00.: (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places. Omit the "%" sign in your response.) Expected return, E(R) 12% 10% Standard deviation, 0 32 34 Correlation .17 Expected return 2 % Standard deviation %