Someone help What expression is equivalent to 1/2^6

Find the multiplicative inverse of 8-12i

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000