Which expression is equivalent to 2.5(x - 1) + 4.5(-x - 2)?

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Determine the volume of a cylinder bucket if the diameter is 8.5 in. and the height is 11.5 in.

Mickey needs to cut pieces of ribbon that are each 1 meter long tie onto balloons. if he has 8 pieces of ribbon that are each 1 dekameter long. how many 1 meter pieces of ribbon can he cut