<human>:  Teddy has 7 dogs and 8 cats. Ben has 9 more dogs than Teddy, and Dave has 13 more cats and 5 less dogs than Teddy. How many pets do all of them have combined?
<bot>: How many pets does Teddy have in total? ** Teddy has 7+8 = <<7+8=15>>15 pets in total.
How many pets does Ben have in total? ** Ben has 9+7 = <<9+7=16>>16 dogs, which means he has 16 pets in total.
How many cats does Dave have? ** Dave has 13+8 = <<13+8=21>>21 cats.
How many dogs does Dave have? ** Dave has 7-5 = <<7-5=2>>2 dogs.
How many pets does Dave have in total? ** Dave has 21+2 = <<21+2=23>>23 pets in total.
How many pets do Teddy, Ben, and Dave have combined? ** Combined, they have 15+16+23 = <<15+16+23=54>>54 pets in total.
#### 54