One week, you tell two of your friends a secret. the next week, each of them tell two people the secret, and the next week, each of those people tell two more people. so the first week, two new people know the secret; the second week, four new people know the secret; the third week, eight new people know the secret, etc. how many people find out the secret on the sixth week?
a. 32
b. 64
c. 128
d. 256

B. 64

Step-by-step explanation:

The trick here is to recognize that the number of new people who learn this information each week is in powers of 2.

Week 0: 2^0 = 1

Week 1: 2^1 = 2

Week 2: 2^2 = 4 (2*2)

Week 3: 2^3 = 8 (2*2*2)

So following this pattern, we can just plug in 6 for week 6 and see what our answer is:

Week 6: 2^6 = 64 (2*2*2*2*2*2)

* A quick note in calculating powers:

calculating 2*2 six times is a lot of work. You know what isn't? 2*2*2 (8). You know what also isn't? 8*8. That's right, 8*8 is also 64! So instead of calculating 2*2*2*2*2*2, you can just calculate 2^3*2^3, or 8*8. :)

omg what happend to your question? if you could edit this question i can

step-by-step explanation:

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.