Help asap pls. For 10 points

Answer:
-1.8
Step-by-step explanation:
-12.1 + 10.3
Since the signs are different, we subtract and take the sign of the larger
12.1 -10.3
1.8
Since 12.1 was negative, we make the answer negative
-1.8
Answer:
-1.8
Step-by-step explanation:
Therefore, the answer is -1.8.