There are 25 students in a class. There are 3 more girls than boys. Let b represent the number of boys. a) Write an expression, in terms of b, that represents the number of students in the class.
b) Write and solve an equation to find the number of boys in the class.

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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.