Which graph is the circle given by (x + 2)2 + (y − 1)2 = 4?

Element 17 is chlorine it is a group 7 element(halogen) and belongs to period 3 of the periodic table

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.