Describe the error in finding the perimeter of the figure.​

Find the value of x. round the length to the nearest tenth

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?

Hello, i need compare km^2 and km. what's difference in this?