Answer:
The value of the expression is 7.5
Explanation:
To calculate the value of the expression -4 + (4.5 + 7), we first need to simplify the inner parentheses:
-4 + (4.5 + 7)
-4 + 11.5
Next, we can perform the addition:
-4 + 11.5 = 7.5
Therefore, the value of the expression -4 + (4.5 + 7) is 7.5.