To find the difference in the number of music CDs sold between 1993 and 2001, follow these steps:
1. Identify the number of CDs sold in 1993 and 2001:
- CDs sold in 1993: [tex]\( 2.3 \times 10^6 \)[/tex]
- CDs sold in 2001: [tex]\( 7.9 \times 10^7 \)[/tex]
2. Convert these numbers to standard form for easier calculation:
- [tex]\( 2.3 \times 10^6 \)[/tex] in standard form is 2,300,000.
- [tex]\( 7.9 \times 10^7 \)[/tex] in standard form is 79,000,000.
3. Subtract the number of CDs sold in 1993 from the number of CDs sold in 2001 to find the difference:
[tex]\[
79,000,000 - 2,300,000
\][/tex]
4. Perform the subtraction:
[tex]\[
79,000,000 - 2,300,000 = 76,700,000
\][/tex]
Therefore, the difference in the number of CDs sold between 1993 and 2001 is [tex]\( 76,700,000 \)[/tex].
5. Match this result to the given options:
[tex]\[
\boxed{76,700,000}
\][/tex]
So, the correct answer is (A) 76,700,000.
