Final answer:
The pattern in the given numbers is that the sum of the two numbers is multiplied by 10 and then added to the product of the two numbers. By applying this pattern to 5, 1, we find that the answer is 65.
Step-by-step explanation:
The given pattern seems to be that the sum of the two numbers multiplied by 10 and then added to the product of the two numbers. Let's apply this pattern to the numbers given:
Therefore, 5, 1 = (5 + 1) x 10 + (5 x 1) = 6 x 10 + 5 = 60 + 5 = 65.