A couple borrows $200,000 for a mortgage that requires fixed monthly payments over 30 consecutive years. The first monthly payment is due in one month. If the interest rate on the mortgage is 5%, which of the following comes closest to the monthly payment? When would the calculation of the effective annual interest rate be most useful?
a. When comparing two investments with different annuity amounts
b. When comparing two investments with different par values
c. When comparing two investments that end at different points in time
d. When comparing two investments that compound differently within a year
e. When comparing two investments that have different inherent risk

In 2018, laureen is currently single. she paid $2,800 of qualified tuition and related expenses for each of her twin daughters sheri and meri to attend state university as freshmen ($2,800 each for a total of $5,600). sheri and meri qualify as laureen’s dependents. laureen also paid $1,900 for her son ryan’s (also laureen’s dependent) tuition and related expenses to attend his junior year at state university. finally, laureen paid $1,200 for herself to attend seminars at a community college to her improve her job skills. what is the maximum amount of education credits laureen can claim for these expenditures in each of the following alternative scenarios? a. laureen's agi is $45,000.b. laureen’s agi is $95,000.c. laureen’s agi is $45,000 and laureen paid $12,000 (not $1,900) for ryan to attend graduate school (i. e, his fifth year, not his junior year).