Answer:
18 +1* t ≤25
Step-by-step explanation:
It must be less than or equal to 25
2*9 is the cost of the dog food since she is buying 9 pounds at 2 dollars a pound or 18 dollars
The cost is 18 +1* t where t is the number of treats since each treat is 1 dollar
18 +1* t ≤25