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The crowning touch in class is the seventh grade, the first volume of mathematics, 88 pages and eight questions (Hope Publishing House).
Hello, I'm glad to answer your question!

The finishing touch in class is the answer to eight questions on page 88 of the first volume of seventh grade mathematics.

1, original price: 270/0.4=675, current price: 675+270=945.

2, 400* 1.05=420 420/600=0.7, so 30% off!

3. A 2190+365 *10 * 0.4 = 3650 (yuan) b 2190 *1+365 * 0.55 */kloc-.

3650X & lt= 32 12 X & lt； =0.88

4. The actual price is1.25a * 0.92 =1.15a1.15a-a = 0.15a (yuan).

5.0.8 times =300+ 100

6. 1.4X * 0.8-X = 15 X = 125

7.0.0225X=45 X=2000

8.( 1-0. 18)X = 25 X = 30.4878

I hope I can help you!

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