Final answer:
To solve the expression 3.4 + 12a ÷ 4, divide 12a by 4 and then add the result to 3.4.
Step-by-step explanation:
To solve the expression 3.4 + 12a ÷ 4, we need to follow the order of operations (also known as PEMDAS or BIDMAS). First, we divide 12a by 4:
12a ÷ 4 = 3a
Then, we add 3.4 to 3a:
3.4 + 3a
So, the simplified expression is 3.4 + 3a.