Evaluate f(x)=0.5⋅3x for x=4

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

the function makes a strait line horizontally with no x intercept but a y intercept at 9.

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