The height of a stack of DVD cases is in a proportional relationship to the number of cases in the stack. stack of 6 cases and its height are shown.
Find the constant of proportionality. Then use the constant of proportionality
to find the height of a stack of 14 cases.

The height of 6 DVD cases is 132 mm

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.