The given inequality is equivalent to
.. |p| < (9 +7)/4
which is represented by the 1st selection.

We simply keep 2 as a whole number and to convert into a fraction, we always divide by 100 when it comes to the tenths place in decimals.
20 cups
4 rows of 5 containing the 3 inch cups and 5 columns of 4 containing the 3 inch cups
I dont think he saves anything the answer might be 0 because he uses all the money!
875+625+625+375 =2500