What are some other ways the answer can be determined ( other than Multiplication) Will mark and 5 STARS, THANKS

If x+y+z=0 what is the value of [tex] {x}^{3} + {y}^{3} + {z}^{3} [/tex]

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas