Abus makes 28 stop every 2 hours. how many stops does it make 3 hour? in 4 hours?

3 hours; 42 stops
4 hours; 56 stops
1 hour; 14 stops

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.