Answer:
the representative sample in this situation is 120students in 4 different classes
Since it could drive 49 miles on 1 gallon, and this is also it's gas mileage, (because 490/10=49) it could drive 45 times more on 45 gallons than on one. So, we multiply 45 by 49 to get 2209 gallons on 45 gallons of gas.
You would use fluid ounces because you are measuring a liquid. There are other units you could use but measuring it in fluid ounces allow for a more accurate measurement because they are smaller
You would milliliters because they are smaller thus more accurate than liters
The constant of proportion would be the price per can of soup.
Find this by dividing the total cost by the number of cans:
3.75 / 3 = 1.25
6.25 / 5 = 1.25
The constant of proportion is 1.25
each can of soup costs 1.25
