2. Calculate the amount of each annuity. a. $1000 deposited every six months for 6 years at 521% compounded semi-annually. b. $600 deposited at the end of each year for 10 years at 4.25% compounded annually. c. $1500 deposited at the end of every three months for 25 years at 5.75% compounded quarterly. 3. Brianna deposits $150 at the end of each quarter into an account that pays 8% compounded quarterly. Calculate the amount in the account at the end of each time period. a. 4 years b. 9 months c. 6.75 years d. 20.5 years Beginning one month after birth of their son, Noah, the Nelsons deposited $100 each month in an annuity for his college fund. The annuity earned interest at an average rate of 6.8% compounded monthly until his 18th birthday. What was the amount of Noah's college fund on his 18th birthday? Referring to question 4, how much interest did Noah's college fund earn in total on his 18th birthday