373-13=360
360 divided by three equal to 120
So 120 children chose basketball
90-52=38
38=3x-5
3x=43
x=14.3
The center-radius form of the circle equationis in the format (x – h)2<span> + (y – k)</span>2<span> = r</span>2<span>, with the center being at the point (h, k) and the radius being "r". Therefore the radius of the circle with the given equation would be </span>√9 or 3, first option. Hope this answers the question.
X - the score he must earn
The average of n numbers is the sum of these numbers divided by n.

He must earn a score of (at least) 74.