What is the estimate of 324867 plus 6233

A)a square brown tarp has a square green patch green in the corner the side length of the tarp is (x + 8) and the side length of the patch is x what is the area of the brown part of the tarpb)a square red placemat has a gold square in the corner the side length of the gold square is (x - 2) inches with the width of the red region is 4 in what is the area of the red part of the placemat

How many square inches are in 60 square feet?

Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start