The Penny Test. There are several popular ways to check your tire tread depth. One easy way is the penny test. Simply insert a penny into your tire's tread groove with Lincoln's head upside down and facing you. If you can see all of Lincoln's head, your tread depth is less than 2/32 inch and it's time to replace your tires.
1 Hourly rates for an outside bookkeeping service run $20-$50 an hour, depending on complexity and location. 2  Usually you can hire a trained, experienced bookkeeper on a contract basis for $30-$40 an hour, but there can be a minimum monthly charge of $100-$150 for small businesses that don't require a lot of work hours. A typical salary for an in-house bookkeeper in the United States runs $30,400-$39,898 according to Salary.com. 2  The average annual pay for a bookkeeping account executive is $68,294, or $57,600 for a payroll manager, according to BookkeeperList.com.
Accounting assistants got paid an average $36,120 per year, or $17.37 per hour, as of May 2011, states the U.S. Bureau of Labor Statistics. Their annual pay ranged from $21,450 to $53,250, which was equivalent to $10.31 to $25.60 per hour.