Acleaning crew can clean 5 offices in 6 hours how many offices can they clean in 12 hours

Its ten you have to add it twice

1.3 and 1 1/3 are both closest to 1. hope this ; )

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.