Need a bit help with two questions

Early in quarantine, Vanessa adopted a fat cat named Nutmeg. She is now on a strict diet. Each morning, she receives 2 oz of dry cat Food on average, with a standard deviation of .5 oz. Each evening, no earlier than 6pm, she receives exactly 3 oz of p_qt_ I ;e_ style wet cat food. Assume that the amount of cat Food Nutmeg eats each day is independent from any other day. I. What is the expected value [in oz) of cat food that Nutmeg will eat over the course of a 30 day month? 2. What is the variance of the cat food that Nutmeg will eat over the course of a 30 day month? hndrea ' s favorite new album is "folklore" by Emmy award winner and notable AT&T spokeswoman Taylor Swift. In one day, she listens to \"betty\" 7 times on average with a standard deviation of L2, "august" 5 times on average with a standard deviation of 1.5, and \"my tears ricochet" 3 times on average with a standard deviation of 2. Listens to each song are independent of other songs. The duration at "betty" is 5 min, duration of \"August" is 4.5 min and that of "my tears ricochet" is 4 mins. I. What is the expected amount of minutes Andrea spends listening to these three songs in an average day? 2. What is the variance of amount of minutes Andrea spends listening to these three songs in an average day