12) mr. hawk cuts a square matte board that is 15 1/2 inches on each side. he wants to cut an
equal border that is 2 3/4 inches wide. what will be the dimensions of the square hole?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?