What is the missing angle? I have the answer I just need
to show the work. pls help ;-;

The answer is 55

Given that de, df, and ef are midsegments of △abc, and de=3.2 feet, ef=4 feet, and df=2.4 feet, the perimeter of △abc is .

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

Is the point (0, 8) on the x-axis or y-axis? how do you know?