What is the center and radius of the circle
(x-4)² + (y)² = 16

Find the volume of the largest rectangular box in the first octant with three faces in the coordinate planes and one vertex in the plane x + 2y + 3z = 15.

Find the equation of a line whose slope is 2/5 and y- intercept is 2.write your answer in the form 1) ax+by+c=02) x/a+y/b=1

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?