<span>Let a_0 = 100, the first payment. Every subsequent payment is the prior payment, times 1.1. In order to represent that, let a_n be the term in question. The term before it is a_n-1. So a_n = 1.1 * a_n-1. This means that a_19 = 1.1*a_18, a_18 = 1.1*a_17, etc. To find the sum of your first 20 payments, this sum is equal to a_0+a_1+a_2+...+a_19. a_1 = 1.1*a_0, so a_2 = 1.1*(1.1*a_0) = (1.1)^2 * a_0, a_3 = 1.1*a_2 = (1.1)^3*a_3, and so on. So the sum can be reduced to S = a_0 * (1+ 1.1 + 1.1^2 + 1.1^3 + ... + 1.1^19) which is approximately $5727.50</span>
Answer:
its the second one.
Step-by-step explanation:
Answer:

Step-by-step explanation:
Hello,
let's solve


There are two solutions

And

So we can write

Hope this helps.
Do not hesitate if you need further explanation.
Thank you
Answer:

Step-by-step explanation:
From the question we are told that:
Percentage of Green beads 
Percentage of Red beads 
Percentage of Purple beads 
Therefore
Probability of choosing a Green bead is

Probability of choosing a Red bead is

Generally the equation for choosing a green bead then a red bead is mathematically given by
Since Outcomes are independent


419 because all you have to do is calculate it