A couple plans to set aside $20,000 per year in a conservative portfolio projected to earn 7

Question:

A couple plans to set aside $20,000 per year in a conservative projected to earn 7 percent a year. If they make their first savings contribution one year from now, how much will they have at the end of 20 years?
Portfolio
A portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. A portfolio can also consist of non-publicly...