Find the area of the composite figure. Next, find the area of the rectangle.
Triangle
Area = 24 cm
4 cm
Rectangle
Area = [?] cm2
7 cm
Total Area of Composite
Figure = [ ] cm2
12 cm

it’s supposed to be -4+45=41

step-by-step explanation:

ok then what happened.

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