Please help! its math and im so confused!

2 answers:

7 0

1. a+5 . a=3 so the answer is 8
2. 15-c. c=6 so the answer is 9
3. 4b . b=5 so the answer is 4X5= 20

4 0

Answer:

1. =8

2. =9

3.=20

4.=3

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