What is the rule of the pattern below? \( 15,25,35,45,55 \)...

The pattern you're looking at consists of a sequence of numbers that increase by 10 each time. You start with 15, and then each subsequent number is found by adding 10: \( 15 + 10 = 25 \), \( 25 + 10 = 35 \), and so on. So, the rule is to add 10 to the previous number to generate the next one! You can also think of this pattern in terms of algebra. If you were to express this sequence in a general formula, it would look something like \( a_n = 15 + 10(n - 1) \), where \( n \) represents the position in the sequence (1 for the first term, 2 for the second term, etc.). This gives you a systematic way to find any term in the pattern!