Answer:
7
Step-by-step explanation:
Listing the factors of each number is one way, that is
factors of 35 : 1, 5, 7, 35
factors of 42 : 1, 2, 3, 6, 7, 14, 21, 42
The common factors are 1 and 7
The GCF is therefore 7
1200 dollars for interest, she must pay 6200
8 percent of 5000 is 400 times 3 (years) is 1200
Answer: it is all of them
