Not sure what you mean by "express" form. But I assume you want the regular form.
4.009x10^-3 is 0.004009. Because 10^-3 means move the decimal to the left 3 digits.
0.2
60 and 7
It would be 5.04x103
In exponenet form, it would be 3.3415 x 105
Writing a number in standard form simply means to express the number in its 'normal' form. Therefore, your example is written in standard form as: 25
Federal Express
how to express the sum 257 and 431 in decimal form
It is not possible to express a number containing alphabetic characters (nA) in scientific form.
FedEx is the short form for "Federal Express".
4,500,000 is the standard form.
5x4x2x4x3x5x5x4
express
"express" both in noun and verb form does not have a gender in English.
75.0
cheaters get smart
30000+9000+700 is expanded form that is already standard form
1.782 × 103