A geometric sequence is defined by the explicit formula an = 5 (-4) n-1. What is the recursive formula for the nth term of this sequence?

A. an = - 5an-1

B. an+1 = 4an

C. an+1 = 5an

D. an = - 4an-1

2. A local charity sponsors a 5K race to raise money. It receives $55 per race entry and $10,000 in donations, but it must spend $15 per race entry to cover the cost of the race.

How do you get the awnser os 3.55 divided by 5 equals 0.71

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Find the output, y, when imput, x, is - 1