John starting playing video games as soon as he got home from school. he played video games for 15 minutes. then, it took john 45 minutes to finish his homework. when john finished his homework, it was 3: 15 p. m. what time did john get home from school?

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.

How much is 32 out of 40 written as a percentage? convert fraction (ratio) 32 / 40 answer:   80%