The combined volume of three pools at a water park is 1.35 · 10^4 gallons. the water park plans to install a new pool with a volume of 3,500 gallons. what will be the total volume of all the pools at the water park after the new pool is installed?

72 the length of a side of a triangle is 36. a line parallel to that side divides the triangle into two parts of equal area. find the length of the segment determined by the points of intersection between the line and the other two sides of the triangle.