1. interquartile range
2. all
The is c for this question
<span>x^2 + 22x + 121 = 9 + 121 ..............a^2 + 2ab + b^2 = (a+b)^2
(x + 11)^2 = 130
answer
</span><span>you must add 121 to complete the square</span>
Answer:

Step-by-step explanation:
From the question we are told that:
9th term 
14th term 
Generally the equation for Geometric sequence is mathematically given by

For 9th term

For 14th term

Substitute in 9th term




Therefore First term a is given as


Generally the equation for the 18th term is mathematically given by


