SOLVE STEP BY STEP IN DIGITAL FORMAT 2. It is known that the speed of growth of a region's vehicle fleet is proportional to the number of existing vehicles. For an urban planning study, in year zero of the project there was an initial quantity of 200,000 vehicles. After five years of observations, the number of vehicles had grown to 250,000 units. Determine: a) the proportionality constant b) the time in which the vehicle fleet reaches 350,000 units

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