The addition replaced about 2,100 seats in the north end.

And all the seats are to be replaced, with about 500 added.

For one reason or another, the orchestra has to replace about 35 percent of its players every year.

On the average, he replaced most of the Condor about three times a year.

She replaced principals in about half the schools and set specific academic goals.

We find that we must replace about every 15 months.

Generally the water should be replaced about every hour.

In the last ten years the city has replaced about thirty with new trees of many varieties.

I had to replace about 6,000 panes of glass in 600 windows alone.

I would replace the lights, at about $100 each.