Trgreen has to plow a field 600 acres a day to finish a project. Due to labor shortage, trugreen was able to plow only 420 acres a day. So now they have to plow 4 more days than the original plan. After that, they still have 150 acres left. What is the area of the farm? How many days does it take to plow the farm?

Trgreen has to plow a field 600 acres a day to finish a project. Due to labor shortage, trugreen was able to plow only 420 acres a day. So now they have to plow 4 more days than the original plan. After that, they still have 150 acres left. What is the area of the farm? How many days does it take to plow the farm?
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