Answer: 30.24
Step-by-step explanation. Ignore the decimal point for now and treat the numbers as whole numbers.
2. Multiply the numbers as if they were whole numbers: 36 x 84 = 3024.
3. Count the total number of decimal places in both numbers. In this case, 3.6 has one decimal place and 8.4 has one decimal place.
4. Add the total number of decimal places: 1 + 1 = 2.
5. Place the decimal point in the product by counting from the right of the result, starting with the rightmost digit. In this case, the result is 3024, so the decimal point would be placed two places from the right, giving us 30.24.
Therefore, 3.6 multiplied by 8.4 equals 30.24.