An economy produces three goods: cars, computers, and oranges. Quantities and prices per unit for years 2012 and 2013 are as follows:
2012
2013
Quantity
Price
Quantity
Price
Cars
9
$2,000
12
$4,000
Computers
7
$1,200
9
$400
Oranges
1,200
$1
1,500
$1
Using the prices for 2012 as the set of common prices, real GDP in 2012 is $?. (Enter your response as an integer.)