Let's set up the cost equations for both companies based on the prices provided.
Balloon Express:
- Cost per balloon: $2
- Delivery fee: $10
If the O'Donnells order 30 balloons, the total cost \( C_E \) for Balloon Express can be calculated as follows: \[ C_E = (2 \times 30) + 10 = 60 + 10 = 70 \]
Balloon Mania:
- Cost per balloon: $1.50
- Delivery fee: $20
The total cost \( C_M \) for Balloon Mania is: \[ C_M = (1.5 \times 30) + 20 = 45 + 20 = 65 \]
Now we can compare the total costs:
- Total cost with Balloon Express: $70
- Total cost with Balloon Mania: $65
To find out which company the O'Donnells should choose, we can identify the savings by subtracting the costs: \[ \text{Savings} = C_E - C_M = 70 - 65 = 5 \]
Thus, the O'Donnells should choose Balloon Mania and they will save $5.
The correct response is: Balloon Mania; $5