2/3 of a number is subtracted from3/4 of the same number and the result gives 1/2.find the number

40 because it’s just a little longer than 32 feet

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.