Which expression is equivalent to 7 3/4 - 1/2 Choose one answer A: 1/2 + 7 3/4 B: 7 3/4 + (-1/2) C: 1/2 + (-7 3/4) D: -7 3/4 + (-1/2)

D

Step-by-step explanation:

Right in edge2020

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