What is considered "good/bad/reasonable" first quarter senior year grades?

I will be applying ED to Tufts, which requires first quarter senior year grades.
Assuming:
AP Physics C - B-
AP Calculus BC - A
AP Environmental Science - B
AP Stats - A
English - A
Spanish 4 - A

I took too many challenging APs last year, so I had somewhat if a downward trend. How would the B and B- look?
Thanks for any input.