1. All five statements (a) through (e) are true. 2. // Compute and echo // volume of aquarium fish_number = volume / 256; //Each fish needs 256 cubic inches of water 3. #include <iostream.h> 4. (a) cout << width << endl; (b) cout << "length is " << length << endl; (c) cout << alpha << beta << gamma << endl; 5. (a) cin >> width; (b) cin >> length >> width >> height;