Plant Growth Comparison Problem

During a science experiment, a group of students collected data on the heights of various plants over a period of time. They measured the heights of these plants in centimeters over a duration of 7 days. Each day, Plant A grew by 2 cm, while Plant B grew by 3 cm. Plant C, however, initially grew by 1 cm on the first day and then doubled its growth each subsequent day. By the end of the 7th day, what was the total growth of all three plants combined?