​$$\text{Find the sum } \dfrac{4}{10} + \dfrac{6}{100} + \dfrac{7}{1000} + \dfrac{9}{10000} \text{ in decimal form.}$$​​

Correct option is C

Given:

$$\frac{4}{10} + \frac{6}{100} + \frac{7}{1000} + \frac{9}{10000}$$

Solution:

We need to convert each fraction to its decimal form:

$$\frac{4}{10} = 0.4 \\ \ \\ \frac{6}{100} = 0.06\\ \ \\ \frac{7}{1000} = 0.007\\ \ \\ \frac{9}{10000} = 0.0009$$​

Now, let's sum them up:

0.4 + 0.06 + 0.007 + 0.0009 = 0.4679

So, the sum in decimal form is 0.4679.