Including 8% sales tax, an inn charges $162 per night. Find the inn's nightly cost before the tax is added.

13664

step-by-step explanation:

=cross multiply

=100 x = 13664

parallel lines have the same slope. so if the green line has a slope of -4, the slope of the red line is also -4.

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?