A worker is reviewing his pay increases over the past several years. The table below shows the hourly wage W, in dollars, that he earned as a function of time t, measured in years since the beginning of 2000. Time t Wage W 1 15.00 15.15 15.30 15.45 2 3 4 (a) By calculating ratios, show that the data in this table are exponential. (Round your answer to two decimal places.) The ratios of successive terms are always which shows that the data is exponential. (b) What is the yearly growth factor for the data? (Round your answer to two decimal places.) (c) The worker can't remember what hourly wage he earned at the beginning of 2000. Assuming that W is indeed an exponential function, determine what that hourly wage was. (Round your answer to the nearest cent.) $