Answer:
Increase Segment margin for Medial = $9,075 
Increase Segment margin for Dental = $12,100 
Step-by-step explanation:
The calculation of increased segment margin.for Medical and Dental is shown below:-
 Medical Dental 
 
Incremental Sales $38,500 $33,000 
 
Less: Variable Cost ($25,025) ($16,500) 
(Medical 65% and ($38,500 × 65%) ($33,000 × 50%)
Dental 50%) 
Incremental
Contribution Margin $13,475 $16,500 
Less: Traceable
Advertising Cost ($4,400) ($4,400) 
 
Increase Segment
Margin  $9,075 $12,100