If two angles lie between two lines and on opposite sides of a transversal then the angles are

Two angles that lie between the two lines on opposite sides of the transversal. if two angles are cut by a transversal, then the pairs of corresponding angles are congruent. alternate interior angles theorem. if two parallel lines are cut by a transversal, then the pairs of alternate interior angles are congruent.

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.