Which Product is Rational?

mr. thompson, a retiree, looks at his check register monthly.

mr. thompson's yearly rent = $204.92 x12=$2459.04.

the average grocery expense   = $34.92.

mr. thompson estimates his yearly expense for groceries to be( 4*12* $  

_34.92.or $ _1676.16.

he revises his estimate using (52 * _$34.92) to get the number $   1815.84

for his estimate.

mr. thompson budget annually for food and rent=$1815.84+$2459.04=$4274.88 .

if mr. thompson receives $1006.28 twelve (12) times a year,   his yearly income= $1006.28x12=$12075.36.

estimate for rent =(2459.04÷12075.36)x100=20.4% and food (1815.84 ÷12075.36)x100=15.0%