Karen and Kevin collect coins. Karen has x coins, Kevin has 3 coins fower than two times the number of coins Karen has. Write and simplify an expression for the total number of coins Karen and Kevin have.
Karen and Kevin have coins
(Simplify your answer.)

yes yes yes yes yes yes yes yes yes

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