In 2017, Elaine paid $2,160 of tuition and $900 for books for her dependent son to attend freshman. Elaine files a joint return with her husband. State University this past fol as a What is the maximum American opportunity credit that Elaine can claim for the tuition payment and books in each of the following alternative situations? (Round your intermediate calculations to two decimal places and final answer to the nearest whole dollar amount. Leave no answer blank. Enter zero if applicable.) Problem 8-74 Part-a a. Elaine's AGI is $89,250 erican opportunity credit