Final answer:
To subtract -2.4 from -7.7, you can rewrite the expression as -2.4 + 7.7 and then add the numbers. The result is 5.3.
Step-by-step explanation:
To subtract -2.4 from -7.7, you can rewrite the expression as -2.4 + 7.7 and then add the numbers:
-2.4 + 7.7 = 5.3
So, -2.4 - (-7.7) = 5.3