How do i finD % decrease. Please help.

Also help with the questions please.

I will report if bad answer like

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Or idk

Thank you very much

Find the distance between c and d on the number line c=3 and d=11

Acompany had forty one employees and ordered nine hundred eighty uniforms for them. if they wanted to give each employees the same number of uniforms, how many more uniforms should they order so they don't have any extra

An isosceles trapezoid was broken into a rectangle and two triangles. what are the base and height of one of the triangles?