Which expression has the same value as 46.1-97.2? 1.
46.1 + (-97.2)

2.
-46.1 + 97.2

3.
97.2 - 46.1

4.
97.2-(-46.1)

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.