Robert is preparing a poster-board presentation. He wants to make a decorative pattern with 10 squares to fill part of the poster. The area of the poster board is 720 square inches. To find how much space Robert will have left for his presentation if he uses squares with 7-inch sides, evaluate 720 − 10s2 when s = 7 .(1 point)Responses 34,790 square inches r34,790 square inches 230 square inches 230 square inches580 square inches580 square inches9,940 square inches

1 answer

The area of each square is s^2 = 7^2 = 49 square inches.
To find the total area covered by the squares, multiply the area of each square by the number of squares: 49 * 10 = 490 square inches.
To find the space left for Robert's presentation, subtract the total area covered by squares from the area of the poster: 720 - 490 = 230 square inches.
Therefore, the correct response is 230 square inches.