Is this right ? Please hurry it’s urgent

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?