We have 390 and we want to find the number thart multiplied by it, will result in 390,000
If we count how many zeros of diffrence between 390 and 390,000 we have, we will notice that:
![\text{ 390 }\Rightarrow\text{ 390 , 000 (Exactly 3 zeros at the right more)}](https://img.qammunity.org/2023/formulas/mathematics/high-school/sal9qagm4zlstdayf4qu0wjwnycq9g6fpn.png)
Therefore, the solution should be 1,000 because:
390 * 1,000 = 390,000
![Thefirstsolutiongivenis10^2\text{ or 10 }\cdot\text{ 10 = 100. This isn't the solution.}](https://img.qammunity.org/2023/formulas/mathematics/high-school/uy8erxsk91o64dduwfpahvml05wffbe3v0.png)
![\text{ The second solution we have is 10}^3\text{, that is 10}\ast\cdot\text{ 10 }\ast\text{ 10 = 1,000.}](https://img.qammunity.org/2023/formulas/mathematics/high-school/s29nwgx27vn8mlraneojbh8xtv0dzlfy7g.png)
This is the solution we are looking for. Correct answer is B.