It is given Kendrick’s kennel has 2 spots for cats for every 7 spots for dogs.

Let Kendrick'a kennel has 2x spots for cats .

So Kendrick will have 7x spots for dogs.

Total number of spots for cats and dogs = 2x+7x=9x.

If he has total of 144 spots for both cats and dogs then .

9x=144

Dividing both sides by 9

x=16.

Number of spots for cats= 2x=2(16)=32

Number of spots for dogs = 7x=7(16)=112.

Number of spots dogs have more than sats = 112-32=80

Kendrick kennel has 80 more spots for dogs than cats .