Answer:
The aggregate expenditure is $27 million. 
Step-by-step explanation:
The consumption spending is $16 million. 
Planned investment spending is $4 million. 
Unplanned investment spending is $2 million. 
The government purchases are $6 million. 
The net export spending is $1 million. 
The aggregate expenditure is 
= Consumption spending + Planned Investment + Government spending + Net export
= $(16 + 4 + 6 + 1) million
= $27 million