Silver Lining, Inc., provides investment advisory services. The company adjusts its accounts monthly, but performs closing entries annually on December 31. The firms unadjusted trial balance dated December 31, current year, appears as follows.

SILVER LINING, INC.
Unadjusted Trial Balance
December 31, Current Year
		Debits				Credits
Cash	$	51,402
Accounts receivable		2,400
Office supplies		246
Prepaid rent		1,440
Unexpired insurance		324
Office equipment		64,800
Accumulated depreciation: office equipment					$	42,300
Accounts payable						1,680
Interest payable						432
Income taxes payable						2,100
Notes payable						10,800
Unearned consulting services revenue						4,200
Capital stock						36,000
Retained earnings						9,600
Dividends		1,200
Consulting services revenue						72,000
Office supplies expense		726
Depreciation expense: office equipment		9,900
Rent expense		4,230
Insurance expense		1,212
Salaries expense		32,520
Interest expense		432
Income taxes expense		8,280
Totals	$	179,112			$	179,112

Other Data

Accrued but unrecorded and uncollected consulting services revenue totals $1,800 at December 31, current year.

The company determined that $3,000 of previously unearned consulting services revenue had been earned at December 31, current year.

Office supplies on hand at December 31 total $132.

The company purchased all of its equipment when it first began business. At that time, the estimated useful life of the equipment was six years (72 months).

The company prepaid its six-month rent agreement on October 1, current year.

The company prepaid its 12-month insurance policy on March 1, current year.

Accrued but unpaid salaries total $2,280 at December 31, current year.

On June 1, current year, the company borrowed $10,800 by signing a 9-month, 8 percent note payable. The entire amount, plus interest, is due on March 1, next year.

The companys CPA estimates that income taxes expense for the entire year is $9,000. The unpaid portion of this amount is due early in next year.

Required:

e. Compute the company's average monthly insurance expense for January and February of current year.

f. Compute the company's average monthly rent expense for January through September of current year.

g. If the company purchased all of its office equipment when it first incorporated, for how long has it been in business as of December 31, current year?