Effect of Omitting Adjustments For the year ending April 30, Mann Medical Services Co. mistakenly omitted adjusting entries for (1) $7,200 of supplies that were used, (2) uneamed revenue of $11,400 that was earned, and (3) insurance of $3,200 that expired. Indicate the combined effect of the errors on (a) revenues, (b) expenses, and (c) net income for the year ended April 30. (a) Revenues (b) Expenses. (c) Net income