On saturday, you spend $33, give $15 to a friend, and receive $20 for mowing your neighbor’s lawn. you have $21 left. use two methods to find how much money you started with that day.

21+33+15+20= 89 you started the day with $89

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.