I need help with this, I think the first two are right but if not correct me, anyway I need help with C and D D is: "use substitution to solve the system for X. show your work"​

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