Final answer:
The equivalent expression for (48m x 76n) is 3648mn.
Step-by-step explanation:
The equivalent expression for (48m x 76n) is 3648mn, which is option a) in the given choices.
To find the product of two numbers, we simply multiply the coefficients (48 and 76) together and combine the variables (m and n) with their exponents. So, 48m x 76n = 3648mn.
In this case, we have 48 multiplied by 76, which is equal to 3648. Then, we have m multiplied by n, which is mn. Therefore, the equivalent expression is 3648mn.