Use properties to evaluate the expression.
(19 + 28) + 21
47
68
Anonymous is right.
To evaluate the expression (19 + 28) + 21 using properties, we can follow these steps:
Step 1: Perform the addition inside the parentheses: (19 + 28) = 47.
Step 2: Add the result of step 1 to 21: 47 + 21 = 68.
Therefore, the value of the expression (19 + 28) + 21 is 68.