Solution:
The question in the image is an arithmetic problem involving multiplication of numbers in scientific notation:7 x 10^9To solve this, you simply multiply the number 7 by 10 raised to the power of 9. Since 10^9 represents the number 1 followed by 9 zeros, the multiplication is straightforward:7 x 1,000,000,000 = 7,000,000,000So the answer is 7 billion.