Similitudes y diferencias de entre potenciación, radicación y logaritmos.

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3