Which expression is equal to 4mn^8/28m^5n^3 ?

Step-by-step explanation:

1. You have the following expression given in the problem above:

2. To find an expression that is equal to the expression shown in the problem, you can simplify it:

- As you can see, 4 and 28 are divisible by 4.

- You need to apply the exponents properties. To divide two powers with the same base, you must subtract the exponents.

3. Keeping this on mind, you have:

correct answer:

b.(19,-2)