Answer:
Fraction of fire trucks = 
Total number of toy cars = 
Step-by-step explanation:
Fraction of sports car = 
Fraction of remaining cars 
So,
Fraction of pick up cars = 
Therefore,
Fraction of fire trucks = 
That is Number of fire trucks =
( Total number of toy cars )
Number of fire trucks = 4
Total number of toy cars = 
60*0.15
9
the answer is there are 9 puppies.
8(x+3)+4x
8x + 24 + 4x
12x = 24
12x/12 = 24/12
x= 2