A pool party is occurring at the Robertson's house this next holiday. They want to invite 64 friends and family. Only 26 friends and 9 family members reply to the invite. The Robertson's are a family of 5. Their pool is 35 feet long and is 10 feet deep when filled to capacity. They are worried children under 5 will struggle in the pool, so they only fill the pool to 5 feet. The day of the party, 53 people show up. The son, Billy, is 4.5 feet tall. If Billy's height is half the width of the pool, what is the volume in cubic feet of water the Robertson's filled the pool with? Do not include units in your answer. Round your answer to the nearest whole cubic foot. For example, if the answer is 19 cubic feet, put 19.