Natalie compared the circumference of her bicycle tire to the circumference of the tire on her mother's car. Her bicycle tire had a radius of 10 inches. The car tire had a radius of 18 inches. What was the difference in the circumferences of the two tires? Use π = 3.14.

A. 8 inches

B. 12.56 inches

C. 25.12 inches

D. 50.24 inches

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