Which is a simplified form of the following expression? 6c^2+2.5d - d + 2c^2-3d

Which transformations could have occurred to map △abc to △a"b"c"? a rotation and a reflection a translation and a dilation a reflection and a dilation a dilation and a rotation

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

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. ?