The government of South Korea announced a$10 billion(11.2 trillionwon) fiscalstimulus, which will increase social welfare subsidies for maternity leave and the healthcare needs of older people and also create new public sector jobs.

The slope of the AE curve is 0.8

If the price level remainsconstant, the immediate change in aggregate planned expenditure and the change in real GDP in the short run is $____ billion?