Final answer:
The number 4.7 X 10^3 in standard form is 4700, which corresponds to answer (b).
Step-by-step explanation:
The student is asking about converting a number written in scientific notation to its standard form. The number in question is 4.7 X 10^3. To convert a number from scientific notation to its standard form, you multiply the base number by 10 raised to the power indicated. Here, 4.7 multiplied by 10 to the third power (10^3) means you are moving the decimal point three places to the right. Therefore, 4.7 X 10^3 is equal to 4700. The correct answer is (b) 4700.