7. Zachary saved x nickels and y dimes last month. Lily saved x nickels and 2y dimes. Lily saved $2 more than Zachary and the total number of her dimes is 4 times the total number of her nickels. (a) How many coins does Zachary have?
(b) How much did Lily save?
(c) How much did Zachary save?

you should at least use a calculater

step-by-step explanation:

46 dollars is the answer.

step-by-step explanation:

6*6 = 36,         36+10=46

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

cant

step-by-step explanation: there is no picture