Which of the following expressions could be used to estimate the difference between -12.34 and -4.8? -12 + 4
-12 - 5
-12 - 4
-12 + 5

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Me asap! what is the slope of this line? enter your answer in the box.

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?