What is the general form of the equation of a circle with a center point (−2,−3) and a radius of 5 ?

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Oscar and julie ashton are celebrating their 15th anniversary by having a reception hall. they have budgeted $4,500 for their reception. if the reception hall charges a $90 cleanup fee plus & 36 per person, find the greatest number of people that they may invite and still stay within their budget.