Which value must be added to the expression x2 + 12x to make it a perfect-square trinomial?

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

At oaknoll school, 90 out of 270 students on computers. what percent of students at oak knoll school do not own computers? round the nearest tenth of a percent.

Jalen charges $25.50 for every 3 hours of yard work he does for his neighbors. ralph charges $34 for every 4 hours of work that he does. who charges less? opinions: 1.they charge the same amount 2.jalen 3.ralph