Afurniture shop refinishes chairs. employees use one of two methods to refinish each chair. method i takes 0.5

0.5

hours and the material costs $9

$

⁢

9

. method ii takes 2.5

2.5

hours, and the material costs $7

$

⁢

7

. next week, they plan to spend 199

199

hours in labor and $1226

$

⁢

1226

in material for refinishing chairs. how many chairs should they plan to refinish with each method?