The equation given in the question is y = 2.54 x In this equation, x is in cm and y is in inches Size of the ruler = 1 foot = 12 inches. Putting the value of 12 inches in the equation, we get y = 2.54x = 2.54 * 12 = 30.48 cm From the above deduction, we can conclude that the length of the ruler is 30.48 cm. I hope that this is answer that you were looking for and the answer has come to your desired help.
