10. yattle holder stands. Each stand has 2 row
20 games and 2 rows of 24 DVDs. Write and evaluate a numeric
expression to find the total number of games and DVDs Camer
stands can hold.
11. Test Practice Arturo buys 3 containers of ice cream for $5 €
a cake that costs $8 to take to his friend's party. Which expr
to find how much money Arturo spent on ice

it goes right

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?