Find the value of x.
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124

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?