Before present dates?

Question

what are the BP dates for these ages: Thank you SSOOOOO MUCH

Age

7. Wood from Bristlecone Pine of White Mountains, California. Age 4731 ± 75 years

8. Pleistocene mammoth bone from La Brea Tar Pits of Los Angeles, California. Age: 12,200 ± 35 years

9. Cottage roof timber from Ireland. Date: 906 ± 35 years

Answer 1

7. Wood from Bristlecone Pine of White Mountains, California. Age 4731 ± 75 years

BP age - 4673

8. Pleistocene mammoth bone from La Brea Tar Pits of Los Angeles, California. Age: 12,200 ± 35 years

BP age - 12142

9. Cottage roof timber from Ireland. Date: 906 ± 35 years

BP age - 848