Answer all of them. How you could write the

Multiplication:
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2.
3.
4.

Division:
1.
2.
3.
4.

8

step-by-step explanation:

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.

the answer to this in exact form is 4/35 but in decimal form its 0.1142857

hope this if needed hmu