The perimeter of a triangle is 38cm. The first side is 10cm longer than the second side, the third side is twice as long as the second side, what are the three side lengths?

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?

Which expression is equivalent to 3^3 + 2^2?

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?