please solve both using step by step excel functions.

A husband and wife want to accumulate an investment worth $200,000 by the end of year 18 . The money will bo needed to send their baby daughter to college. How much must they invest now to accumulate their fool assuming thex can earn an average of 7% pet vear? Use the PV function to determine how much to invest to What if they can inwest $2,000 per war for each of the 18 years, how moch waulit they need to invest todoy