Lena has decided to save money for a new skateboard that costs $150. Last week, Lena saved $12.64. Yesterday, Lena's grandmother gave her three times as much money as she saved last week to put toward the skateboard. Then, Lena used some of her saved money to buy an ice cream cone that costs $3.50. Calculate the amount Lena has saved so far and then write an expression showing the total amount Lena will have saved if she saves extra dollars, d, this week.

yes

step-by-step explanation:

give me the question

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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

he is going to fill two shelves and the third shelf will only have five video games