Iunderstand 560-500 over 500. but why is it multiplied by 100?

Factor the expression. 4d + 12 __ (d +

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

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?