Kylie is preparing for the science fair that will take place in six weeks. She has three plants that she has grown from seeds, which she considers to have height 0 centimeters, and she is measuring their heights as she applies different treatments to each. The first plant is receiving Plant Food A. After 4 weeks, it is 10 centimeters tall. If it continues growing at this rate, how tall will it be after 6 weeks? please help :/