Complete the Decimal Sequence: 0.9, 0.8, 0.7, Find the Next Three Terms

To determine the sequence's missing numbers, follow these steps:

• Step 1: Analyze the given sequence: $0.9, 0.8, 0.7$.
• Step 2: Calculate the common difference by subtracting consecutive terms. For instance, $0.8 - 0.9 = -0.1$ and $0.7 - 0.8 = -0.1$, confirming a common difference of $-0.1$.
• Step 3: Continue the pattern using this common difference: - Starting from $0.7$, subtract $0.1$, giving $0.6$ as the next number. - From $0.6$, subtract $0.1$ again, resulting in $0.5$. - Finally, subtract $0.1$ from $0.5$, yielding $0.4$.

Thus, the completed sequence is $0.9, 0.8, 0.7, 0.6, 0.5, 0.4$.

The correct answer to complete the sequence is $0.6, 0.5, 0.4$.