For 13 and 14, is this a parallelogram? if so, which theorem justifies this is a parallelogram

Which graph corresponds to the function f(x) = x2 + 4x – 1?

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.

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?