35 points! plz asap< br /> i have worked the problem< br /> a-(2+3) =-2< br /> to a-5=-2< br /> i don't know how to bring my equation down further, plz !

a = 3

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.