Through how many states does the Mississippi River flow?
10
5
4
5
4
5
4
5
3
4
5
3
6
4
5
3
6
4
12
5
3
2
6
4
12
5
3
11
2
6
4
12
5
3
1
7
11
2
6
4
12
5
3
1
7
11
2
6
4
12
5
3
1
13
7
11
2
6
4
10
12
5
3
8
1
13
7
11
9
2
6
4
10
12
5
3
8
1
13
7
11
9
2
6
4
10
12
5
3
8
1
13
7
11
9
2
6
4
10
12
5
3
8
1
13
7
11
9
2
6
16
4
10
12
5
3
8
1
13
7
0
11
9
14
2
6
16
4
10
12
5
3
8
1
13
7
11
9
14
2
6
16
4
10
0
12
50
5
3
8
1
13
4 states
7
11
9
14
2
6
16
4
10
12
50
5
3
8
20
1
13
7
11
9
14
2
6
16
4
10
12
50
5
3
66
8
20
17
1
13
7
11
2
50
62
63
2 states
66
7 states
5 states
4 states
59