Answer: -0.5 kg
Step by step explanation:
the negative value means that the cats weight decreased from the previous months and the positive values means that the cats weight increased
we’re trying to find how much change the car went through in the last 3 months
so we just add up the changes
-0.7+0.5-0.3=-0.5
This tells us that in 3 months the cats total weight change is a decrease of 0.5 ponds therefore the answer is -0.5