El año pasado, el Sr. Víctor compró una casa a S/ 450 000. Este año, la vendió con un descuento del 5 %. ¿En cuánto vendió su casa el Sr. Víctor?

What is the quadric regression equation that fits these data

The sum of two numbers is 86, and their difference is 20. find the two numbers

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?