A fish tank is one-fourth full of water. If six gallons of water were added, the tank would be three-fourths full. What is the capacity of the tank (in gallons)?

John gave his son Mike 5z number of coins in addition to what he already has. Mike then has (y + 10) times as many coins as he had originally. In terms of y and z, how many coins did Mike have originally?

The value of celluler phone declines by 33 percent of its current value every year. At this rate. Approximately how many years will it takes for the price of a $243 cell phone to reach $72?

A worker is paid x dollars an hour for the first 8 hours he works in a day. For every hour after the first 8 hours, he is paid y dollars an hour. If he works 16 hours in one day, what is his average hourly wage for that day?

If a certain factory produces 24 Pepsi bottles of one liter capacity each in 12 minutes, approximately how many Pepsi bottles does it produce in one hour?

The deadline for an assignment was Sunday, January 27. The deadline was then extended for 15 days. What day of the week is new deadline?

A rectangular tiled floor is composed of 70 square tiles. The rectangular floor is rearranged so that 2 tiles are removed from each column and 4 tiles are added to each now. After the change in layout, the floor will still have 70 tiles, and still be rectangular. How many columns are in the tile floor before the change in layout?

City B is 4 miles due east of city A. City C is 3 milesdue south of city B. City D is 4 miles due east of city C, and city E is 9 miles due north of city D. What is the distance between city A and city E?

Of the 150 players in a baseball league, 90 are left-handed. Which of the following is the percentage of players that are not left-handed?