(make sure you're right!)! 1. It is known that the perimeter of the square is C, the side length of the square is (), and the area is () 2. A travels a kilometer per hour, B travels B kilometer per hour (a + b) × 3 denotes () (a-b) × 5 means () 3. Express the following quantitative relationship by equation (1) M is 9 times more than 38 (2) Three fifths (3 / 5) of 100 m is less than 27:1 (3) M is 78:1 more than one tenth (1 / 10) of 372 5. There are 480 pages in a book. After 8 days of reading, Xiao Fang still has 120 pages left. Suppose that he reads page a every day, then () = 120

(make sure you're right!)! 1. It is known that the perimeter of the square is C, the side length of the square is (), and the area is () 2. A travels a kilometer per hour, B travels B kilometer per hour (a + b) × 3 denotes () (a-b) × 5 means () 3. Express the following quantitative relationship by equation (1) M is 9 times more than 38 (2) Three fifths (3 / 5) of 100 m is less than 27:1 (3) M is 78:1 more than one tenth (1 / 10) of 372 5. There are 480 pages in a book. After 8 days of reading, Xiao Fang still has 120 pages left. Suppose that he reads page a every day, then () = 120

1. It is known that the perimeter of the square is C, and the side length of the square is (C / 4), and the area is (C ^ 2 / 16) the square of C divided by 162