Question

Which pair of expressions below are equivalent?
Answer
Multiple Choice Answers
6, r, plus, 6, r, and , 12, r, squared6r+6r and 12r
2

6, left parenthesis, 6, r, minus, 9, right parenthesis, and , 36, r, minus, 96(6r−9) and 36r−9
12, r6(6r) and 12r
4r+6s

Answer 1

To determine which pair of expressions is equivalent, let's analyze each of the options provided:

1. **6r + 6r and 12r**:
- \(6r + 6r = 12r\).
- This pair is equivalent.

2. **(6r − 9) and 36r − 9**:
- \(6(6r − 9) = 36r - 54\), but we have \(36r - 9\).
- These expressions are not equivalent.

3. **6(6r) and 12r**:
- \(6(6r) = 36r\).
- These expressions are not equivalent.

4. **4r + 6s**:
- There is no second expression provided for comparison here, so we cannot judge its equivalence without further context.

From the analysis, the only equivalent pair of expressions is **6r + 6r and 12r**.