Final answer:
5x10⁷ expressed in standard notation is 50,000,000, which is achieved by moving the decimal point 7 places to the right due to the exponent 7 in the original scientific notation.
Step-by-step explanation:
The student is asking about how to express a number written in scientific notation in standard notation. In this case, the number is 5x10⁷. This means that the number 5 is being multiplied by 10 raised to the power of 7. To express this in standard notation, we need to move the decimal place 7 places to the right because the exponent is positive.
To do this, we start with the number 5 and then add seven zeros to the right of it since it's 10 to the power of 7 (“10 multiplied by itself 7 times”). So, the number 5x10⁷ expressed in standard notation is 50,000,000.