Discover Questions

Describe how and where new crust material is made. Describe how and where old crust is destroyed.? Find a positive angle, less than 360 degrees, that is coterminal with a 1715 degree angle. Please show steps!!? An action potential can be referred as a ¨wave of depolarization¨ down the axon. Explain what you think this means.? Does NASA still use miles instead of kilometers? Could someone help me with these math problems? I can't figure them out. Solve the linear equation;
x+2y=15
y=-2x+0 9x-12y=-3
-12x+16y=4?