Question number 5 is talking about a public four-year college. So we know this:

2000-$3,500
2001-$3,700
2002- ?
2003- ?
2004-?
2005-$5,100
Repeating exercise 1-4 it is talking about private four-year college. So we know this:
2000-$16,200
2001-$17,300
2002- ?
2003- ?
2004- ?
2005-$20,100

To find the missing values for both the public four-year college and private four-year college, we can look for a pattern in the given values.

For the public four-year college:
From 2000 to 2001, the tuition increases by $200 ($3,700 - $3,500).
From 2001 to 2002, we can assume the tuition will also increase by $200. Therefore, the tuition for 2002 would be $3,900 ($3,700 + $200).
From 2002 to 2003, the tuition increases by $200 again. Therefore, the tuition for 2003 would be $4,100 ($3,900 + $200).
From 2003 to 2004, we can assume the tuition will increase by $200 again. Therefore, the tuition for 2004 would be $4,300 ($4,100 + $200).

For the private four-year college:
From 2000 to 2001, the tuition increases by $1,100 ($17,300 - $16,200).
From 2001 to 2002, we can assume the tuition will also increase by $1,100. Therefore, the tuition for 2002 would be $18,400 ($17,300 + $1,100).
From 2002 to 2003, the tuition increases by $1,100 again. Therefore, the tuition for 2003 would be $19,500 ($18,400 + $1,100).
From 2003 to 2004, we can assume the tuition will increase by $1,100 again. Therefore, the tuition for 2004 would be $20,600 ($19,500 + $1,100).

To summarize, the missing values are:
Public four-year college:
- 2002: $3,900
- 2003: $4,100
- 2004: $4,300

Private four-year college:
- 2002: $18,400
- 2003: $19,500
- 2004: $20,600