What is the H. C.F of 105, 135 and 180?
A. 13 B,15 C. 17 D. 19 E. 21

b

Step-by-step explanation:

Seeing that all of the numbers are multiple of 5, the answer should be 15 because the other answers don't have 105, 135 or 180 as a multiple

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

lol 2

step-by-step explanation: