23.
By completing the square, solve
x^2 + 12x -c=0
where c is a positive constant.
Give your answers in surd form in terms of c.
You must show your working.

Empty box + box + empty box fill in the box is equal to 30 how

The hockey team has been great! in 2008 they won 20% more games than in 2007. in 2009 they won 50% more games than in 2008. what was their overall percentage increase from 2007 through 2009?

Usan threw a softball 42 yards on her first try and 5112 yards on her second try. how much farther did she throw the softball on her second try than her first? express your answer in feet and inches. 9 ft 12 in. 28 ft 12 in. 28 ft 6 in.