Question 747108
A question like that is below the Pre-Algebra level.  You must build your basic number sense and Arithmetic knowledge before learning "Pre-Algebra".  Take the course you NEED and later you can get into the course you WANT.  


The sample problem presented starts with $95, and "John" does a purchase which removes $3.75, SIX times.  You are asked to figure out how much money John still possesses when the purchase is finished.  The very lowest-level way to do this is:


{{{95.00-3.75=itembought1}}}
{{{itembought1-3.75=itembought2}}}
{{{itembought2-3.75=itembought3}}}
{{{itembought3-3.75=itembought4}}}
{{{itembought4-3.75=itembought5}}}
{{{itembought5-3.75=itembought6}}}

What is this last value, "itembought6"?


A more efficient way is like this:
You know John buys 6 of the item costing $3.75 each, so he spends {{{6*(3.75)}}}.  He will then have, instead of his original 95.00 dollars,
{{{95.00-(6*3.75)}}} dollars.