Match the sequence (term) with the correct type of sequence (definition). (4 points) 1. 15, 20, 25, 30, ...
2. 30, 27, 24, 21, ...
a. Arithmetic, common difference is 5 b. Arithmetic, common difference is -3

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.