A restaurant meal for a group of people cost $85 total. This amount included a 6% tax and an 18% tip, both based on the price of the food. Which equation could be used to find f, the cost of the food

85 - 0.06x - 0.18x = x

85 = x + 0.06x + 0.18x

85 = 1.24x

85/1.24 = x

68.55 = x

To find the cost of the food, we need to subtract the tax and tip from the total cost.

Let's say the cost of the food is represented by variable f.

The equation to find f is given by:

f + 6% of f + 18% of f = $85

To convert the percentages to decimals, we divide by 100:

f + 0.06f + 0.18f = $85

Now, let's simplify the equation:

1.24f = $85

Thus, the equation to find f, the cost of the food, is 1.24f = $85.

To find the cost of the food (f), we need to subtract the tax and tip from the total cost of the meal.

Let's start by finding the tax amount. The tax is 6% of the price of the food.

So, the tax can be calculated by multiplying 6% (or 0.06) by the cost of the food (f): 0.06f.

Next, let's find the tip amount. The tip is 18% of the price of the food.

The tip can be calculated by multiplying 18% (or 0.18) by the cost of the food (f): 0.18f.

Now, we can write the equation to find the cost of the food (f):

f + 0.06f + 0.18f = $85

Combine the like terms on the left side of the equation:

0.24f = $85

Solve for f by dividing both sides of the equation by 0.24:

f = $85 / 0.24

Therefore, the equation that could be used to find f, the cost of the food, is:

f = $85 / 0.24

f + .06f + .18f = 85.00

or
1.24f = 85.00