C=180-a-b a=62 and b=33 please help me

Step-by-step explanation:

where and

Step 1.  Substitute a for 62 and b for 33

Step 2. Subtract

Step 3. Subtract (again)

so c = 85

the answers c

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