A new vehicle is worth $2500. If it depreciates records in value 12% per year, after 6 years what will it be worth

Country carpets charges $22 per square yard for carpeting, and an additional installation fee of $100. city carpets charges $25 per square yard for the same carpeting, and an additional installation fee of $70

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

This is different from the first one can someone me