Help with nucleophilic substitution reaction tert-butyl GC-MS comp . min scan num. area 1 1.35 10 5877649 2 1.

6482041
t-butyl
show calculations for the ratio of t-butyl bromide to t-butyl chloride. identify which is R-Br and R-Cl ratio, based on GC-MS data.
is the ratio consisted with SN1 mechanism?
1-butanol sub reaction
show calculations for the ratio of 1-bromobutane to 1-cholorbutane. identify which is R-Br and R-Cl ratio, based on NMR data.
is the ratio consisted with SN2 mechanism?
Attachment 1
Attachment 2