How do I write a formula that Sums all the numbers in column F for only the
rows that also have a number of 37 in column I?

In other words, Add all the numbers in column F together who also have a 37
in column I, if not, then don't count them.

It seems like a simple thing but I'm not smart enought to figure it out.
Thanks for your help in advance!
-- Dax