Final answer:
To find the X factor, subtract the number of puppies sold from the total, multiply the X factor by 8, and divide it by 1/8.
Step-by-step explanation:
To find the X factor, we first need to subtract the number of puppies sold from the total number of puppies Peter had. So, 105 - 10 = 95 puppies remaining.
Next, we multiply the X factor by 8, so 95 * 8 = 760.
Finally, we divide the result by 1/8. To divide by a fraction, we multiply by its reciprocal. So, 760 ÷ (1/8) = 760 * 8/1 = 6080.
Therefore, the answer is 6080.