It takes 60 minutes for 7 people to paint 5 walls. how many minutes does it take for 10 people to paint 10 walls?

Ithink it is correct but just ask someone else but i am sure it it

(-8,5) bu tun not sure ok

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.