Since volume=length*width*height you can set up the problem like
v=14*(3*14)*10
after multiplying all that you get
v=5880 inches cubed
It’s letter C.
If you start at point (0,0) and go up two over one (rise over run) to the left, you’ll be at (-1,2). Go up two over one again to the left to get to (-2,4). Your equation would be: y=-2x+0 (0 because you started at 0 so your y-intercept is 0) though since it’s +0 you can leave that out and have y=-2x. It’s a negative slope because the line would be going down to the right.
The ratio of the sides are the same. So 6/24=x/56. This leads to x being 14.