Explain Net-Present-Worth Criterion?

How much should they save annually for the next three years if they want to build up Joseph's college fund to $31,000, assuming a 5 percent rate of return and ignoring taxes on the interest?

Hector puts $150 into an account when the interest rate is 4 percent. Later he checks his balance and finds he has about $168.73. How long did Hector wait to check his balance?   A.  3 years B.  3.5 years C.  4 years D.  4.5 years

"Knowing how to secure your financial well-being is one of the most important things you'll ever need in life. You don't have to be a genius to do it. You just need to know a few basics, form a plan, and be ready to stick to it. No matter how much or little money you have, the important thing is to educate yourself about your opportunities. At the SEC [Securities and Exchange Commission], we enforce the laws that determine how investments are offered and sold to you. These laws protect investors, but you need to do your part, too. No one can guarantee that you'll make money from investments you make." Use the excerpt from the SEC's Guide to Saving and Investing to answer the following. Be sure to write in complete sentences. Explain different types of investments and savings accounts and how they help your money grow over time. Describe the importance of government agencies, like the SEC, in protecting your investments.