If the answer is 9 Knots, what's the question?
These?
What is the Vapp speed additive to VLS with a 27kt HW with
no autothrust, no autoland, no ice accretion, no gusts, and a
CG > 25%?
What's the V1 decrement for TO Config 2 on a contaminated
3000m+ runway with all reversers operative?