Choose all the equations which are correctly solved. x2 - 5x + 5 = 0 {2,3}
x2 - 7x - 8 = 0 {-1,8}
x2 + 12x + 20 = 0 {-2, -10}
x2 – 3x – 10 = 0 {2, 10}
x2 + x + 20 = 0 {4,5}

Which equation represents the partial sum of the geometric series?

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

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?