Answer:
The Expression is 37c +41b +15t + s
Step-by-step explanation:
For one Dog:
Number of collar, c = 1
Number of Bowl, b = 1
Number of toys, t = 1
For 15 dogs = 15( c+ b + t)
For one Cat:
Number of collar, c = 1
Number of Bowl, b = 1
Number of scratching pole for all 22 cats, s = 1
For 22 cats = 22(c + b) + s
For one rabbits :
Number of Bowl b = 1
For 4 rabbits = 4b
Now the total number of bowls, collars and toys will be
=> 15( c+ b + t) + 22(c + b ) +s +4b
=> 15c + 15b +15t +22c +22b +s +4b
=>37c +41b +15t + s