1.4 trillion average cost of a college education at a public university 1.4 trillion $20,090 a year 1.4 trillion 1.4 trillion 1.4 trillion 20.000 dólares por año académico $20,090 a year 1.4 trillion 1.4 trillion ronda los 35.000 1.4 trillion average cost of a college education at a public university not nearly as costly comes at a price average cost of a college education at a public university