At the beginning of a trip, the mileage odometer read 56,20056,200 miles. The driver filled the gas tank with 66 gallons of gasoline. During the trip, the driver filled his tank again with 1212 gallons of gasoline when the odometer read 56,56056,560. At the end of the trip, the driver filled his tank again with 2020 gallons of gasoline. The odometer read 57,06057,060. To the nearest tenth, what was the car's average miles-per-gallon for the entire trip

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?