Jeanette made a 3-by-3 square from tiles. She counted 9 tiles. She noticed that the one middle tile shared sides If Jeanette makes a 6-by-6 square from tiles, how many tiles will share sides with exactly 3 other tiles?With 4 other tiles. She also noticed that each of the corner tiles of the big square shared sides with exactly 2 other tiles. Finally, she noticed that each of the middle tiles along the sides of the big square shared sides with exactly 3 other tiles.

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step-by-step explanation:

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d. $180

step-by-step explanation:

if the dimensions of the room is 9ft by 12 ft, we have the area of the floor as,

so the area of the floor is 108 square feet, converting that into square yards we get,

the cost of carpet is $15 per square yard, therefore the cost of carpet for 12 square yards is,

hence, the cost of carpet is $180.

assuming the dimensions of the room be,

15 ft by 12 ft

so, the area of the floor of that room is,

we can convert 180 square feet into square yards, we know that,

1 sq ft = 0.111 sq yard

so, 180 square feet is,

so the area of floor is 20 square yards.

now, the cost of carpet is 15 dollars per square yard, therefore the cost of carpet for 20 square yards is,

so, it will cost $300.