Tyler throws a water ballon into the air from the top of a building, and it lands on the ground. the graph below models the height of the water balloon throughout its flight. select the most appropriate unit to measure the amount if time that the water ballon is in the air. milliseconds minutes hours seconds

7:56

Step-by-step explanation:

1:8

we need to turn the one into seven. Turn the ratio 1:8 into the fraction 1/8.

multiply by 7/7 to turn the one into seven and 8 into 56

7/56 can now be turned into ratio 7:56. You could omit the turning of the ratio into the fraction at the beginning, but I find it makes it simpler.