4 5/4 as a improper fraction

21/4

Step-by-step explanation:

first we multiply the whole number by the denominator to get 16 then we add the numerator so that would be 16+5 = 21 and we keep the same denominator so its 21/4

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