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
S = 40w + 450
Step-by-step explanation:
4
5-1=4
Answer:3
Step-by-step explanation : because it said it was correct