Hello!
Answer:

Explanation:
→ We want to convert 48,678 in standard form.
→ The standard form of a relative number is to write it in the form
, where
is a real number that verifies 1 ≤ a < 10 and n is a relative integer.
→ In our number:
- a is necessarily
since 1 ≤ a < 10.
- n is 4 because

So the standart from of 48,678 is:

Conclusion:
48,678 in standard form is 4.8678 x 10⁴.