For the year ending December 31, Beard Clinical Supplies Co. mistakenly omitted adjusting entries for (1) $7,550 of unearned revenue that was earned, (2) earned revenue that was not billed of $11,400, and (3) accrued wages of $6,420. Indicate the combined effect of the errors on (a) revenues, (b) expenses, and (c) net income.

a. Revenues were______ by $ (fill in the blank)

b. Expenses were________ by $ (fill in the blank)

c. Net income was________ by $ (fill in the blank)