A grass seed has grown to a 12 millimeter tall blade of grass. Tomorrow it will be 23 millimeters tall, the next day 34 millimeters tall, and on the next day 45 millimeters tall. Write a rule to represent the height of the blade of grass as an arithmetic sequence

Answer 1

The rule to represent the height of the blade of grass as an arithmetic sequence is given by:
\[a_n = 12 + (n-1)(11)\]
where $a_n$ represents the height of the blade of grass on the $n$th day.