A teacher wrote an algebraic expression on the board and asked students to write an equivalent expression. The teacher's expression is partially shown below

Idon’t feel like doing the math but you need to do 2.24 divided by 7

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.