Any help?

Given h(x) = -X – 1, solve for x when h(x) = 0.

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Nikolas calculated the volume of the prism. his work is shown below.

What is the volume of this container?