Maria’s property tax bill was $4135 in 2016 and $4524 in 2017. Which of the following is closest to the percent that Maria’s property tax bill had increased over the two given years?

Two cities a and b are 1400km apart and lie on the same n-s line. the latitude of city a is 23 degrees. what is the latitude of city b. the radius of the earth is approximately 6400km.