14 boys and 21 girls will be equally divided into groups. find the greatest number of groups that can be created if no one is left out.

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)

What are the interpretations of the line 3x - 15y = 60? x-intercept y-interception a: x 20 - y -4 b: x 5 - y 20 c: x -3 - y 15 d: x -4 - y 20

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2