Which expression is equivalent to 1/5(150x - 80y + 50 - 50x - 25y + 20)?

As soon as look at the parallelogram abcd shown below: the table below shows the steps to prove that if the quadrilateral abcd is a parallelogram, then its opposite sides are congruent: which choice completes the missing information for reason 5 in the chart? (6 points) congruent parallelograms congruent triangles similar angles similar triangles

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

How do i do this? i don’t understand