50 points an unknown number x is at most 20. which graph best represents all the values of x? (1 point) number line graph with closed circle on 20 and shading to the right. number line graph with open circle on 20 and shading to the right number line graph with closed circle on 20 and shading to the left. number line graph with open circle on 20 and shading to the left

At most means it can either equal 20 or be less than 20.

On a number line, there would be a closed circle on the number 20 and the area to the left of 20 would be shaded.

Number line graph with closed circle on 20 and shading to the left.

parallel and congruent

step-by-step explanation:

the movement of translation is linear.   these have the same translation because you are using the same rule for each point of the triangle so you will see the same slope being used to get from a point on the triangle to its image.

same slope!   you should think parallel when you see those 2 word together (well unless it's the same line but it can't be because we are coming from different points here)

congruent! because each point is being moved the same distance.