Does the data in this table represent a proportional relationship?

Time (Min) 1, 2, 3, 7, 10
Water used (gal) 5, 10, 15, 35, 50

Yes, the table represents a proportional relationship because the ratios of all data points are equivalent.

Yes, the table represents a proportional relationship because the unit rate is 1.

No, there is no unit rate for gallons of water used.

No, the unit rate is not equivalent to the other ratios.