How do you tell which radical is the largest? (elementary algebra)

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

Use sigma notation to represent the following series for 9 terms.