Tomato Plants - How old are they?

I bought tomato plants today and would like to know how long ago they were planted (how long they've been growing since they were planted). They're about 5 inches tall. I assume 7-10 days for germination, but how long after that have they been growing? Thanks for the help. Here's a picture of them if you need to see it:





http://xs224.xs.to/xs224/08081/dscn45962...

Tomato Plants - How old are they?
maybe 2-3 weeks sense they germinated. mine are about 7 weeks sense they were planted and are a little over a foot tall. one thing that helps make them grow is to mix a little skim milk into the water. try some with the skim milk and some without and you will see the difference
Reply:5to 7weeks nice healthy plants,keep them moist and in the sun if it,s above 50 at night get them in the ground or one to a 5gal bucket.tomatoes need 6hrs a day of direct sun light.
Reply:month old be good time period