Solve and show work for (x+2)(2x+5)=0

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Nine people are going to share a 128-ounces bottle of soda. how many ounces will each person get drink? choose the correct equation and answer for this situation

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square