Answer:
The cost of the food bill and tip before sales tax is $253.2044.
Explanation:
We have given, Anna’s family had a party.
Food bill was $214.58.
The tip was found by multiplying the food bill by 0.18.
The tip amount is

So, The tip is $38.6244.
We have to find the cost of the food bill and tip before sales tax.
The solution is adding the amount of bill and tip.
Cost = Food bill + Tip amount
Cost = $214.58 + $38.6244
Cost = $253.2044
Therefore, the cost of the food bill and tip before sales tax is $253.2044.