It takes Francisco 8 hours to rake the front lawn while his brother, Caleb, can rake the lawn in 6 hours. How long will it take them to take the lawn working together? Round your answer to two decimal places.

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