Given: ABEF and BCDE are both parallelograms,
Prove: ACDF must also be a parallelogram.

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

What is the result of the following division?

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.