Let's pretend the USA’s Real GDP in 2015 was $6.2 trillion. If C = $2.5 trillion, I = $1.5 trillion, G = $1 trillion, then X = ,

which means are greater than .

Now, let’s pretend the USA’s Real GDP in 2016 was $7.5 trillion. If C = $3.6 trillion,

I = $2.1 trillion, and G = $ 2 trillion, then X = , which means

are greater than .

What was the growth in the USA’s Real GDP from 2015 to 2016? Did the USA achieve its goal for GDP growth (which is the same as the US), and how do you know?