English is spoken as the first or primary language in 78 more countries than farsi is spoken as the first language. together, english and farsi are spoken as a first language in 130 countries. in how many countries is english spoken as the first language? in how many countries is farsi spoken as the first language?

Farsi is spoken in 26 countries. english is spoken in 104.

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.