49 + 22.88 find the estimate of each sum or difference

What is the vertex form of f(x) = x2 + 6x + 3

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

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