Answer: 2√5 - 3
Step-by-step explanation:

3+4p+8t+6+5p
9+9p+8t
......
<h2>
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Answer:
2n + 2
Step-by-step explanation:
The formula for nth term of an arithmetic progression is 
In this example we have d = 2 (difference, +2 each time) and a1 =4 (first term of sequence).
