Which of the following is the sale price for an item with an original price of $9.99 after applying a discount of 35%?

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

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