work point 4.6

Work point 4.6
1. 25% increase in income
25% increase on plane trips
0% increase in gym
and a 25% decrease in clothes
so 25%/25% is 1
2. they are somewhere between a nessecity and superior
3. 0
4. they are unrelated
5. 25%/-25%
-1
6. it is a inferior good.