Is number 17 and 18 correct? If not please show the inputs you would put into excel.

Assume that you wish to save $25,000 for a getaway to celebrate your 5th anniversary with your significant other. You plan to set aside money every 6 months, beginning 6 months from today. If you can earn 4% on your money, what input is necessary to determine how much you should set aside every 6 months? =Pin(.04,10,0,25000) Consider the preceding question. What if you were to start setting aside money today rather than waiting 6 months for your first deposit? How would your input change (if at all)