This video demonstrates the monty hall problem, named after the host of the game show "let's make a deal" that originally aired in the 1960s and 1970s. in this show, contestants picked one of three curtains, one of which had a car behind it and the other two had goats. after contestants chose a curtain, monty hall showed the contestant what was behind one of the two curtains the contestant had not chosen. then he offered the contestant the option to switch her choice.
a. 3
b. 10
c. 20
d. 40

Igure 1 and figure 2 are two congruent parallelograms drawn on a coordinate grid as shown below: 4 quadrant coordinate grid showing two parallelograms. figure 1 has vertices at negative 5, 2 and negative 3, 4 and negative 4, 7 and negative 6, 5. figure 2 has vertices at 5, negative 2 and 7, negative 4 and 6, negative 7 and 4, negative 5. which two transformations can map figure 1 onto figure 2? reflection across the y-axis, followed by reflection across x-axis reflection across the x-axis, followed by reflection across y-axis reflection across the x-axis, followed by translation 10 units right reflection across the y-axis, followed by translation 5 units down