Final answer:
The expanded form of the number 54.98 is 5 x 10 + 4 x 1 + 9 x 0.1 + 8 x 0.01.
Step-by-step explanation:
The expanded form of the number 54.98 is 5 x 10 + 4 x 1 + 9 x 0.1 + 8 x 0.01. To expand a number, we break it down into its different place values and add them together. In this case, 54.98 can be written as 50 + 4 + 9 x 0.1 + 8 x 0.01.