Question 1: factor out the greatest
common factor
3t5s − 15t2s3
question 1 options:
3(t5s − 5t2s3)
3t2(t3s − 5s3)
3t2s(t3 − 5s2)
-12t3s2

For this case we have that by definition, the GCF or (Greatest Common Factor) is given by the greatest common factor that divides both terms without leaving a residue.

15: 1,3,5,15

3: 1.3

Then we have the GCF of the expression is:

Option C

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

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