Agardener is planting two types of trees: type a is 9 feet tall and grows at a rate of 11 inches per year. type b is 7 feet tall and grows at a rate of 14 inches per year. algebraically determine exactly how many years it will take for these trees to be the same height.

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A. with the advantage of hindsight and the perspective of an outside observer and may be more objective.
B. provided by someone who's been through an event. It's a firsthand account that lends a unique perspective.
C. on statistics gathered after an important historical event.
D. on psychological information gathered from raw data from psychological tests.

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