Luis deposita $ 5600 en el banco al 20 % y deja el dinero en la entidad durante 3 años. Carla coloca
$ 6 200 al 15 % durante 4 años. ¿Cuál de los dos
recibe un interés mayor?

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.