Answer:
f( - 2) = 23
Step-by-step explanation:

So 2×9=18 so she spend $18 on the pounds of food so 25-18=7 so the nuber of treats she can buy 7 treats for the animal shelter
Answer:
Third one
Step-by-step explanation:
30x would be 30 times the amount of fish (x)
+ 80y would be 80 times the amount of octopus captured (y)
- 15z would be subtracting 15 times the amount of crabs she captures