At a sporting goods store, 4 cans of tennis balls cost $9.00. The relationship between number of cans (+) and cost (v) can be modeled with the following equation y = = Which of the following statements is not true?
O A case (24 cans) costs $56.00
O Thirteen cans cost $29.25.
The unit rate is $2.25 per din
The constant of proportionality is