∠A and ∠B are vertical angles with m∠A=x and m∠B=3x−60. What is m∠A?

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Mindy bought 5/8 pound of almonds and a 3/4 pound of walnuts. which pair of fraction cannot be used to find how many pounds of nuts she bought in all.

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?