You invest in a stock portfolio which includes Apple and Tesla. Apple starts with an initial investment of $45 and gains $0.20 a month. With Tesla, you start with $36.50 and it gains $0.63 a month. When are the two stocks nearly equal in value? (Use Desmos)

a. about 12 months b. about 18 months c. about 20 months (19.767)

d. about 25 months

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