Parallel lines are preserved in which of the following types of transformations? 1. rotations II. reflections III. translations

All of the above.

Step-by-step explanation:

Translation, reflection, and rotation are isometries, since they preserve length. Therefore translation, reflection and rotation are congruency transformations. Further if we only require that parallel lines be mapped onto parallel lines, we get the shears and stretches.

73.0769230769% of the games were won

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.