Question

To determine if either of the given equations is a proportion, we need to check if the two ratios on each side of the equation are equal.

1) For the equation **168 = ?2412**:
We can interpret this as a proportion where we need to check if 168/2412 is equal to some other ratio. It's unclear what the values are supposed to be equated to, since there is a question mark in place of a = or a value.

2) For the equation **84 = ?126**:
Similar to the first equation, we need to look at the proportions.

We can clarify the equations a bit. Let's assume you mean:

- \( 168/2412 = ? \)
- \( 84/126 = ? \)

Now we will evaluate both ratios and check for equality.

1) For the first ratio:
- \( 168/2412 \)
- Simplifying \( 2412 \): \( 2412 = 168 \times 14.3571 \) (approximately).
- Thus, \( 168/2412 \) does not simplify to a clear ratio equal to anything that we can derive specifically.

2) For the second ratio:
- \( 84/126 \)
- We can simplify this: \( 84/126 = 2/3 \) since both can be divided by 42.

Since \( 168/2412 \) does not provide a clear rational number we can equate easily with something meaningful from the context given, while \( 84/126 \) simplifies down to a recognizable ratio.

Therefore, **we can conclude that only 84 = 126 forms a proportion.**

The correct response is:
**84=126 only**
**Start Fraction 8 over 4 End Fraction equals Start Fraction 12 over 6 End Fraction only**