Here is a list of activity times for a project as well as crashing costs for its activities. determine which activities should be crashed and the total cost of crashing if the goal is to shorten the project by three weeks as cheaply as possible. there are three paths (top, middle and bottom). each path contains three sequential activities which must be performed in the order they are listed (e. g., a before b, b before c). note that activity c is contained on both the top and middle paths. (omit the "$" sign in your response.)

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).