a(1)=20 a(n)=a(n-1)*3/2 what is the 3rd term in the sequence?

I’m a smart person so that’s why i think it was 6

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.