To solve this, we need to find the cost per gallon and use that to fill in the missing values.

1. First, calculate the price per gallon: $\text{Price per gallon} = \frac{\text{Total Price}}{\text{Gallons}} = \frac{6}{2} = 3 \text{ dollars per gallon}$

2. Use this rate to fill in the missing values:

   • For row $a$, where the price is $1$ dollar, we find the gallons: $\text{Gallons} = \frac{1 \text{ dollar}}{3 \text{ dollars per gallon}} = \frac{1}{3} \approx 0.33 \text{ gallons}$

   • For row $b$, where the gallons are $1$, we find the price: $\text{Price} = 1 \text{ gallon} \times 3 \text{ dollars per gallon} = 3 \text{ dollars}$

3. Final Table:

   Gasoline (gallons)	Price (dollars)
   2	6
   0.33	1
   1	3

Let me know if you'd like further details or if you have questions!

Related Questions

1. How would the price change if gasoline costs $4 per gallon?
2. What if 3 gallons of gasoline cost $9?
3. How many gallons would $5 buy at this rate?
4. What is the formula for calculating cost with different rates per gallon?
5. How can this concept be used to calculate fuel costs for long trips?

Tip

Always calculate the unit rate first when working with proportional relationships.