What number must be added to the polynomial to complete the square? x^2 + 7x

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

Ihonestly have no clue if it's each or none.

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