Mary ann is buying miniature cars. she wants to buy 20 cars total for a big race she and her friends are having. black cars $6 dollars each. if she spends $104, how many white cars did she buy?

The answer will be 624 that's how many white cars she buyed HOPES this helps. :)

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.