Evaluate the following expressions: 1. 15+18%3-20/6 2. 32%12+6-38/5*8 3. 5/9*(33.6-4.5) 4. 18.0 + 5.0*3.0/4.0 Suppose x, y, z and w are int variables. Assume each statement line is lexecuted in succession, one after the other, what value is assigned to (Ctrl) of those variables AFTER the last statement is executed? Only one answer for each variable please. x=15; y=18; Z=X-5/x; = x=z-y; y=x+2*z; w=z-y+2*z; W ++; z=2*x+W