The difference of three times a number and 4 is 13. Find the number. Round your answer to the hundredths place as needed.

Answer might be d.i think

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.

B. 16is the absolute value