Find the sum and then classify it. 3/4 plus 64 to the square root

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

What is a possible solutions of the x> 3?

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.