Explanation:
To calculate the total amount that Lin's father will pay for the meal, we need to consider the cost of the meal, the state tax, and the tip.
1. Cost of the meal: $40.00
2. State tax: 7% of the cost of the meal
Tax amount = 7% of $40.00 = 0.07 * $40.00 = $2.80
3. Tip: 10% of the cost of the meal
Tip amount = 10% of $40.00 = 0.10 * $40.00 = $4.00
Now, we can calculate the total amount:
Total amount = Cost of the meal + Tax amount + Tip amount
= $40.00 + $2.80 + $4.00
= $46.80
Therefore, Linx's father will pay $46.80 for the meal, including tax and tip.