A manufacturer of portable compact disk players shipped 200 of CD players to its two Quebec warehouses. It costs $3 per unit to ship to Warehouse A, and $2.50 per unit to ship to Warehouse B. If the total shipping cost was $537.50, how many were shipped to each warehouse

It is the top one. the answer is -7. that is smallest

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.