12 miles in 48 minutes
12/48 or 1/4 miles per minute
Times 60 is 15 miles per hour
Cross section is the area you make when you make a cut across a shape. In this case, the cut must be parallel to the base. Hence, the cut shape would be same to that of the base. The base's dimensions are 7 cm long x 5 cm wide. Thus, the cross section area is 35 square centimeters.
6in×2=12inches and 2/5×2=0.8 so the answer would be 12.8