g alexander and mary want to fully fund their son liam's college tuition when he enters college at age 18. liam is currently age 3 and the school he will attend costs $20,000 in today's dollars. they expect the cpi to be 4% and tuition inflation to be 6%. alexander and mary are aggressive investors and have consistently earned 11% annually. what is the annual investment alexander and mary must make at the end of each year to achieve this goal?
