Tanya is incorrect. 7.4k and 4.3 are not like terms
Answer:
c) 6x + 36
Step-by-step explanation:
6(x+ 6)
6× x + 6 × 6
6x + 36
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For this case we have that by definition, the Greatest Common Factor (GCF) is the largest factor that 2 numbers have in common.
So, we have the following expressions:

We look for the positive integers that divide to 35 and 42 without leaving residue:
42: 1,2,3,6,7,14,21
35: 1,5,7
Thus, the GCF of 42 and 35 is 7
Then, the GCF of the three expressions is:

Answer:
