agree on something *
agree upon something

Only a few months after his death in 1919, the idea of making a park was agreed upon.

The answer is probably yes, if a price can be agreed upon.

The value of which already been agreed upon by the players.

And so the plan to return together was agreed upon.

They were agreed upon simply so we could read one another's work.

What they cannot agree upon is how, exactly, that process took place.

The committee can be any size the two groups agree upon.

And everyone will have to take far less than we agreed upon.

Today this is something which we more or less agree upon.

What they are not agreed upon, is the cause of this cold.