If a certain job can be finished by 18 workers in 26 days. How many
workers are needed to finish job in 12 days?

answer: i think you should do the math and pay attention in class : )

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that is truly what   think but if i get the answer i will

hi do you need an answer for your question?

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i would love   to but there is no graph shown

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i am so sorry

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?