50 points and brainless i really need ! write as a product of 2 polynomials.
a×(b-c) + d×(c-b)

tell me how to get the answer

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section