Bob, Cal ,and Pete each made a stack of baseball cards Bob's that was 0.2 m high Cal stack was 0.24 high Pete stack was 18 point 2.18 write a number sentence that compares a stack of cards to pete

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.