If x, y and z are positive integers and 3x=4y=7z, then the least possible value of x+y+z=?

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x

Deshawn uses 3/4 of a box of rice to cook dinner the portion he uses weighs 12 ounces right and solve an equation to find the weight of the full box of rice

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"