A train travels 360km at a uniform speed .if the speed had been 20km/hr more, it would have taken 3hour less for the same journey. find the speed of the train .

Is trapezoid abdc the result of a dilation of trapezoid mnpq by a scale factor of ? why or why not? yes, because ab and cd are each the lengths mn and qp. yes, because sides ab and cd are parallel to sides mn and qp. no, because ab is the length mn but cd is the length qp. no, because sides ab and cd have different slopes from sides mn and qp.

Bring the fraction a/a-4 to a denominator of 16-a^2

Simplify the algebraic expression 8y-2(y+4)