A state park has two pools. The olympic size pool holds 8.12 x 10^5 gallons of water and the smaller pool holds 5.27 x 10^5gallons of water. What is the combined capacity of the pools?
\(8.12 \times 10^5 + 5.27 \times 10^5 = (8.12+5.27)\times 10^5 = 13.39\times 10^5~gal\)