Jim wants to know how much his family spends on water for showers. Water costs
$1.50 for 1,000 gallons. His family averages 4 showers per day. The average
length of a shower is 10 minutes. He places a bucket in his shower and turns on
the water. After one minute, the bucket has 2.5 gallons of water. About how much
money does his family spend on water for showers in a 30-day month?