For the year ending June 30, 2014, Island Clinical Services mistakenly omitted adjusting entries for $1,600 of supplies that were used, (2) unearned revenue of $4,500 that was earned, and (3) insurance of $3,750 that expired. What is the combined effect of these errors on (a) revenues, (b) expenses, and (c) net income for the year ended June 30, 2014?