Which of the following sets contains only rational numbers?
a. 776, pi, 25.209,and the square root of 9
b. 726,7/34,20.209, and the square root of 9
c. square root of 3,7/39,20.3, and the square root of 9
d. 726,7\34,20.209, and the square root of 5

answer:   y=2x-3

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