One week you tell 3 of your friends a secret. the next week, each of them tells 3 people the secret and the next week each of those people tell 3 more people. so the first week, 3 new people know the secret, the second week 9 new people know the secret, the third week 27 new people know the secret, etc. how many people find out the secret on the 4th week?

81

Step-by-step explanation:

Given

In first week 3 new people Knows the secret and

in second week 9 new people new the secret

and in the third week 27 new people knows the secret

so we can see that each week new people are increasing as power of 3

i.e.

where n= no of week

For n=1, it is 3

for n=2,it is 9

for n=3,it is 27

for n=4,it is 81

she will most likely have 33  

step-by-step explanation:

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies