Kim s age is twice that of her sister when you add kim's age to her sisters age of 36 how old is each sister right in equation that represents the situation

Can somebody me out with this question

Which equation represents the function on the graph?

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