A desk is on sale for 15% off. The sale price is $612.
What is the regular price?

$720

Step-by-step explanation:

Step 1: Set up the expression.

Step 2: Simplify.

Step 3: Convert 0.85 into a fraction.

Step 4: Multiply 612 by reciprocal of 17/20.

Therefore, the regular price was $720.

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