Which of the following expresses 12 + 42 by using the gcf of the two numbers?
3(9 + 14)
3(4 + 38)
6(2 + 7)
6(6 = 36)

Step-by-step explanation:

The given expression is

First, we need to find the Greatest Common Factor (GCF), which is the highest multilple, which is common to both numbers. So, to find the GCF, we need to make a list with all divisors

Observe that the common number here is 6, that means the Greatest Common Factor is 6, and that's the number should be in front of the expression. That means the two possible answers are 6(2 + 7)  and 6(6 = 36). However, the last one doesn't make sense because it has "=" in the middle.

Therefore, the right answer is 6(2 + 7).

Let's prove it

6(2 + 7) = 6x2 + 6x7 = 12 + 42.

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x

dalila is incorrect. the whisker on the left is very long, going all the way out to 5. the whisker goes from 5 to 30, so it has a spread of 25. the rest of the box plot values are closer together, so 5 is an outlier