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The first volume of seventh grade mathematics refines 74 pages of answers.
profit taking

3.

4 Yuan's extracurricular brilliance:

1.A

2。 C

3.800 yuan

4. 1375 yuan

5.28 yuan

6. 125 yuan

7.B

Cohesion of senior high school entrance examination:

1; 40 1.584 yuan

2; A 500 yuan, B 180 yuan.

That's it!