Find the perimeter of triangle ABC. - 9 square root 84
- 9 square root 2 + square root 82
- 18 + square root 82
- none of the above

Use the multiplier method to incrases £258 by 43%

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?