X-y=4
x+4y=7
using substitution

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

Acompany had forty one employees and ordered nine hundred eighty uniforms for them. if they wanted to give each employees the same number of uniforms, how many more uniforms should they order so they don't have any extra

Find the volume of the wedge cut from the first octant by the cylinder z=12-3y^2 and the plane x+y=2.