A piggy bank has one more than seven times as many dimes as nickels and two less than three times as many quarters as nickels . the piggy bank has $4.10 in total how many of each type of corn are in the piggy bank

answers

\3. yes the presentation (i.e. odd numbers being written as differences of two squares) is possible for all odd natural number however the presentation may not be unique. for example,  57=112−82=292−28257=112−82=292−282.

\4. 2 can't be written as a difference of two squares because 4-1=3 and 1-1=0 and the difference of squares grows to integers larger that 3.

can i get some in proving questions 1 and 2?

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