Let's solve for $a_{12}$ in the given arithmetic sequence.

Given sequence:

$7, 9, 11, 13, \dots$

• First term: $a_1 = 7$

• Common difference: $d = 9 - 7 = 2$

• General formula for the $n$th term of an arithmetic sequence: $a_n = a_1 + (n - 1) d$

• Plugging in $n = 12$:

  $a_{12} = 7 + (12 - 1) \cdot 2$

  $a_{12} = 7 + 11 \cdot 2$

  $a_{12} = 7 + 22 = 29$

Final Answer:

$a_{12} = 29$

Would you like me to also calculate the sum of the first 12 terms?

Here are five related questions for practice:

1. Find $a_{20}$ in the same sequence.
2. Find the sum of the first 12 terms of this arithmetic sequence.
3. What is the 50th term of the sequence?
4. If the sum of the first $n$ terms is 560, find $n$.
5. Find the sum of the first 100 terms.

Tip: Always identify the first term and common difference before solving arithmetic sequence problems.