In the last ten years, the population of Brazil has grown at an exponential rate of 0.8% per year to 205,813,615. If this rate continues,
what will be the population in 10 more years? (Simplify your answer
completely. Round your answer to the nearest whole number.)

just look at the 10 years in the past then we produce more people then we lose so times it by 3

the answer is d. 75%

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)