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1. Red 4-door cars in a parking lot ●○○○○ 10 ptsThere are 20 cars in a parking lot. All of the cars are red or white, and all of the cars are either 2-door or 4-door. Of these cars, 12 are red, 15 are 4-door, and 4 are 2-door and white. How many of the cars are 4-door and red?
2. Male listeners in a radio survey ●○○○○ 10 ptsA radio station, KAMC, surveyed listeners. The results are in a two-way table with columns Listen, Don't Listen and Total, and rows Male, Female and Total. The known entries are: - Listen column: Total $136$, Female $58$ - Don't Listen column: Male $26$, Total $64$ - Total column: Female $96$, Total $200$ The other entries are unknown. What percentage of the males surveyed listen to the station?