Answer:
The pair of expressions in the options 'b' and 'c' is equivalent using the Associative Property of Multiplication.
Hence, options b and c are correct.
Explanation:
The associative property of multiplication defines that when we multiply, we can group the numbers in any combination.
a × (b × c) = (a × b) × c
For example,
4 × (6 × 8) = (4 × 6) × 8
In our case, now, if we analyze the options 'b' and 'c'
5 (3a · 4) = (3a · 4) · 5
5 (3a · 4) = (5 · 3a) · 4
It is clear that both the expressions are equivalent using the Associative Property of Multiplication as we have discussed earlier.
Thus, the pair of expressions in the options 'b' and 'c' is equivalent using the Associative Property of Multiplication.
Hence, options b and c are correct.