Estimating sums of single digit numbers
which of the following represents the most accurate estimation of 4 + 8? is the answer 5, 10, 20 or 25

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Somone me i want to know what 18 hours out of 24 hours in a fraction

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.