What is the range of the function f(x)=1/2x+5 when the domain is {2, 4, 6}?

So a rectangle has 2 Long side so that would be a total of 10 ft 12 in which is 13 feet so you
take 16 ft 10 in subtract 13 feet and you get 3 ft 10 in remaining so then you divide that into two because there’s two shorter size and that gives you 1 foot and 11 inches each