How long do marriages last in America today?

The Wikipedia article on Marriage in the United States cites Williams, Sawyer, and Walstrom's (2008) textbook, Marriages, families, and intimate relationships: A practical introduction for the statistic, "The median length for a marriage in the US today is 11 years with 90% of all divorces being settled out of court."
I tried to find the source for this claim but couldn't find an easy way to access the book without purchasing it. 

From 2009 data reported by the U.S. census bureau in May 2011:

In 2009, 83 percent of all currently married couples had achieved at least their fifth anniversary, 55 percent had been married at least 15 years, and 35 percent had reached their twenty-fifth anniversary. A small percentage of currently married couples had passed their golden (fiftieth) wedding anniversary-6 percent. These percentages are only 1 to 2 percentage points higher than they were in 1996, reflecting both the leveling of divorce rates and the increases in life expectancy.
(p. 17)
PDF of report:

These data are based on the duration of the most recent marriage for couples married at the time the survey was taken (2009).  According to these data, the median duration of first marriage for those whose first marriage ended in divorce was 8 years, with separation occurring at 6.6/6.7 years.
How to get divorced from my husband if he already got a second marriage and children from his second wife

You dont say where you are but bigamy is illegal in most western countries and his second marriage would be declared invalid. To divorce you do the same as any other couples, do, you separate or kick him out of the house (maybe send him to live with his

What does 'on an empty stomach' mean exactly?

Great question! Ideally it means you take the medication or supplement while the stomach is not in the process of digesting food. This is because during thr first phase of digestion the stomach contains a strong acid that can damage the supplement or medication.However, you need

If you do 120 push-ups spread out in 6 sets of 20 throughout the day, will it help to build stronger upper body?

Your body will quickly get used to 120 push ups whole day and you will reach a plateau sooner than you think.Since your goal is to build a stronger upper body, I would recommend you to use the powerlifting strategy but make sure to have someone to check your technique regularly.Lets say you do 6