Question 517806
The smaller jar sells at
{{{ 3/2.5 = 1.2 }}} 
or $1.20/oz
Let {{{p}}} = the price of the larger jar
{{{ p/4 = 1.2 }}}
{{{ p = 4.8 }}}
If you add in the rebate, the larger jar
on the shelf for {{{ 4.8 + .5 }}} or $5.30 /jar
is the same price/qty as the smaller jar,
so $5.29/jar is more economical