please help me understand unit 6.

Chrome File Edit View History Bookmarks Profiles Tab Window Help AutoSure Discus PG Campus x Unit 6 Lab Homework - MM25 x Question 11 - Unit 6 Lab Home * + Chrome File Edit View History Bookmarks Profiles Tab Window Help AutoSave Discussion 5 PG Campus x 4 Unit 6 Lab Homework - MM25 x Question 13 - Unit 6 Lab Home x + - C A ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252Fims.mheducation.com252Fmghmiddleware%252Fmheproducts%252F Unit 6 Lab Homework Saved 13 At the beginning of each period for 10 years, Merl Agnes invests $420 semiannually at 6%. What is the cash value of this annuity due at the end of year 10? (Do not round intermediate calculations. Round your answer to the nearest cent.) 1.66 points Future value Book Print References Grawhrome File Edit View History Bookmarks Profiles Tab Window Help AutoSave Discussion 5 PG Campus X Unit 6 Lab Homework - MM25 x Question 10 - Unit 6 Lab Home x + G ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A$252F%252Fims.mheducation. com $252Fmghmiddleware%252Fmheproducts%252 Unit 6 Lab Homework Saved 10 Jeff Associates borrowed $21,000. The company plans to set up a sinking fund that will repay the loan at the end of 7 years. Assume a 8% interest rate compounded semiannually. What must Jeff pay into the fund each period of time? (Do not round intermediate calculations. Round your answer to the nearest cent.) 1.66 points Payable amount eBook Hint Print References