A hot air balloon went from an elevation of 5,898 feet to an elevation of 3,333 feet in 38 minutes. What was its rate of descent?

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.

Ithink it is b and d

Ithink so 1.you go to your profile and your questions and you'll be able to delete them