3x^2+ 12x+ 81= 15 complete the square

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

Adesigner charges a one time fee of $200 plus $40 an hour for each project. write an expression to represent how much money the designer will make for a project