A family takes a trip to the roller-skating rink. They have a flat fee of $20 to enter plus an additional $3.00 for the roller blades they rent per person. Create a linear equation that represents this information.

20 + 3x = ??

i believe that there should be one more set of numbers, for example the total amount of money the family spent?

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