Answer:
The prime factors of 15 are: 1,3,5,15
The prime factors of 21 are: 1,3,7,21
The prime factors of 38 are: 1,3,13,39
The prime factor of 42 is : 1,2,3,6,7,14,21,42
Step-by-step explanation:
This question is sort of hard to answer
the third one
204 miles
All I did was divide 143 by 3.5 and got 40.85(I rounded it), then I multiplied 40.85 by 5 and got 204 (I also rounded that if it doesn't need to be rounded then the real answer would be 204.25)
