Basic Mathematics
# Pattern Recognition

What is the $\color{#D61F06} {27 ^\text{th} }$ term in the following sequence:

$1, 4, 9, 16, 25, \dots?$

What is the $9^{th}$ term in the following sequence: $2, 6, 12, 20, 30, \cdots ?$

What is $\color{#D61F06} {18 ^\text{th} }$ term in the following sequence: $-1, 0, 1, 2, 3, \dots?$

What is the $\color{#D61F06} {9 ^\text{th} }$ term in the following sequence:

$1, 3, 5, 7, 9, \ldots$

What is the $\color{#D61F06} {8^{\text{th}} }$ term in the following sequence of even integers:

$2, 4, 6, 8, 10, \dots?$