How do i calculate the perimeter of abcd?

I would believe just by multpy 5*6*8 until thous are really the only numbers u have to work with witch would be 340 and if that's wrong then u would add witch is 73 it depends what kind of unit ur in

At a constant it will take one hour to travel 32 mi.at that speed it will take 1/2 hr to travel the remaining 16 mi.it will take 1+1/2 hr to travel the 48mi @ 32mph.so 1 hr = 60 min& 1/2 hr = 30 min1+1/2 hr = 90 min.there are 60s in each 90 × 60 = 3600 seconds.the real question seriously is he why are they driving so slow? ! lol.

The equation is y=17(7)+600 and it equals 717